Dr. Raphael Marschall

@spacemarschall.net

4258 Followers 370 Following

Associate Professor of Experimental Physics at the @unibe.ch Co-I of ESA's Comet Interceptor, collaborator on NASA's Lucy and ESA's Rosetta missions. www.spaceMarschall.net (he/him)🇨🇭🇺🇸🇫🇷 #asteroids #comets #protoplanetarydisks #planetaryScience 🧪🔭🚀🛰️☄️

Surface of comet 67P imaged by Rosetta's OSIRIS camera on 2016-05-03 12:45:20.101.
I don’t want to give it away here but will post it with proper alt text in one of the next posts.
Model of the International Space Station hovering above the entrance hall at Bremen airport.
Man with brown glasses a beard, wearing a blue coat and scarf in front of an old University building.
In the center of the image a man walking on a stony beach. On the right side waves are crashing onto shore and in the background buildings are lit up orange from a sunset.
Bracket for "BSky Planetary Science Image of 2025" contest, featuring small icons of 16 images grouped into four quarter-finals, four semi-finals, and one final. The winner is big in the centre. All is against a lunar surface backdrop.
Full results of the final are shown as a list with bars that extend to the respective percentage of votes. " Uranus as seen by JWST" got 63.1% (70 votes) and "Gigantic TLE* above Mexico seen from the ISS" got 36.9% (41 votes). The bottom panel shows how the number of votes per day and total number of votes changed over time.
Description by Simeon Schmauß (https://www.flickr.com/photos/semeion/54664805569/): On July 3rd, astronaut Nichole Ayers photographed a gigantic jet from the ISS. These rare upward directed electrical discharges extend ~90-100 km high into the mesosphere. The jet originated from a thunderstorm over Northern Mexico, with city lights from South Texas and the green airglow layer visible along Earth’s limb. I processed this image from the RAW file, adjusting the color profile, white balance and contrast and applied Lightroom's machine learning denoise with low strength. The RAW was provided to me by Frankie Lucena, his analysis of the event, correlating it to measurements from the Geostationary Lightning mapper and ELF-VLF radio signals can be found here: https://spaceweathergallery2.com/indiv_upload.php?upload_id=224355 City annotations referenced from Riccardo Rossi: https://x.com/RikyUnreal/status/1942367538714734609 Original image listing in the NASA archive: https://eol.jsc.nasa.gov/SearchPhotos/photo.pl?mission=ISS073&roll=E&frame=281502 Credit: Nichole Ayers / NASA JSC / ESRS / Simeon Schmauß
Image of Uranus taken by the James Webb Space Telescope, showing a whitish north polar region, vivid blue-greenish atmosphere and a few whitish elongated storms visible around the pole. The planet is surrounded by clearly defined ring system set against the black background of space. Source: https://www.flickr.com/photos/192271236@N03/54879990600/ Credit: NASA/ESA/CSA/STScI/AndreaLuck CC BY
Image of Uranus taken by the James Webb Space Telescope, showing a whitish north polar region, vivid blue-greenish atmosphere and a few whitish elongated storms visible around the pole. The planet is surrounded by clearly defined ring system set against the black background of space. Source: https://www.flickr.com/photos/192271236@N03/54879990600/ Credit: NASA/ESA/CSA/STScI/AndreaLuck CC BY
Final machup of planetary science image of the year with "Uranus as seen by JWST" vs "Gigantic TLE above Mexico seen from the ISS". Uranus image description: Image of planet Uranus taken by the James Webb Space Telescope (JWST). Source: www.flickr.com/photos/192271236@N03/54879990600/sizes/o/ Credit: NASA/ESA/CSA/STScI/AndreaLuck CC BY Colourised image created processing data from: mast.stsci.edu Instrument: NIRCAM Title: CAL-NRC-421: NIRCam Linearity Characterization Target: Uranus Time: 2025-10-06 Filters: F150W2-F162M, F410M Observation ID: jw08975-o001_t001_nircam_f150w2-f162m-sub320, jw08975-o001_t001_nircam_clear-f410m-sub320 Description Earth: On July 3rd, astronaut Nichole Ayers photographed a gigantic jet from the ISS. These rare upward directed electrical discharges extend ~90-100 km high into the mesosphere. The jet originated from a thunderstorm over Northern Mexico, with city lights from South Texas and the green airglow layer visible along Earth’s limb. I processed this image from the RAW file, adjusting the color profile, white balance and contrast and applied Lightroom's machine learning denoise with low strength. The RAW was provided to me by Frankie Lucena, his analysis of the event, correlating it to measurements from the Geostationary Lightning mapper and ELF-VLF radio signals can be found here: https://spaceweathergallery2.com/indiv_upload.php?upload_id=224355 City annotations referenced from Riccardo Rossi: https://x.com/RikyUnreal/status/1942367538714734609 Original image listing in the NASA archive: https://eol.jsc.nasa.gov/SearchPhotos/photo.pl?mission=ISS073&roll=E&frame=281502 Credit: Nichole Ayers / NASA JSC / ESRS / Simeon Schmauß
A true color image of Io as imaged by Juno on December 30, 2023 during its closest flyby. This is the closest a spacecraft got in the past 20 years. North is up and this side of Io faces Jupiter. The ↄ-shaped black spot is Loki Patera, to its north is the black spot Amaterasu Patera volcano and further north is the Dazhbog Patera also a black spot. Source: https://commons.wikimedia.org/wiki/File:Io_imaged_by_Juno_spacecraft.png NASA/JPL-Caltech/SwRI/MSSS/Kevin M. Gill, @kevinmgill.bsky.social
Image of planet Uranus taken by the James Webb Space Telescope (JWST). Source: www.flickr.com/photos/192271236@N03/54879990600/sizes/o/ Credit: NASA/ESA/CSA/STScI/AndreaLuck CC BY Colourised image created processing data from: mast.stsci.edu NASA/ESA JWST Webb Space Telescope Instrument: NIRCAM Title: CAL-NRC-421: NIRCam Linearity Characterization Target: Uranus Time: 2025-10-06 Filters: F150W2-F162M, F410M Observation ID: jw08975-o001_t001_nircam_f150w2-f162m-sub320, jw08975-o001_t001_nircam_clear-f410m-sub320 Proposal PI: Varun Bajaj PI Institution: Space Telescope Science Institute Proposal ID: 8975 www.stsci.edu/jwst-program-info/program/?program=8975 Credit: NASA/ESA/CSA/STScI/AndreaLuck CC BY
Description by Simeon Schmauß (https://www.flickr.com/photos/semeion/54664805569/): On July 3rd, astronaut Nichole Ayers photographed a gigantic jet from the ISS. These rare upward directed electrical discharges extend ~90-100 km high into the mesosphere. The jet originated from a thunderstorm over Northern Mexico, with city lights from South Texas and the green airglow layer visible along Earth’s limb. I processed this image from the RAW file, adjusting the color profile, white balance and contrast and applied Lightroom's machine learning denoise with low strength. The RAW was provided to me by Frankie Lucena, his analysis of the event, correlating it to measurements from the Geostationary Lightning mapper and ELF-VLF radio signals can be found here: https://spaceweathergallery2.com/indiv_upload.php?upload_id=224355 City annotations referenced from Riccardo Rossi: https://x.com/RikyUnreal/status/1942367538714734609 Original image listing in the NASA archive: https://eol.jsc.nasa.gov/SearchPhotos/photo.pl?mission=ISS073&roll=E&frame=281502 Credit: Nichole Ayers / NASA JSC / ESRS / Simeon Schmauß @stim3on.bsky.social
Description by Simeon Schmauß (https://www.flickr.com/photos/semeion/54664805569/): On July 3rd, astronaut Nichole Ayers photographed a gigantic jet from the ISS. These rare upward directed electrical discharges extend ~90-100 km high into the mesosphere. The jet originated from a thunderstorm over Northern Mexico, with city lights from South Texas and the green airglow layer visible along Earth’s limb. I processed this image from the RAW file, adjusting the color profile, white balance and contrast and applied Lightroom's machine learning denoise with low strength. The RAW was provided to me by Frankie Lucena, his analysis of the event, correlating it to measurements from the Geostationary Lightning mapper and ELF-VLF radio signals can be found here: https://spaceweathergallery2.com/indiv_upload.php?upload_id=224355 City annotations referenced from Riccardo Rossi: https://x.com/RikyUnreal/status/1942367538714734609 Original image listing in the NASA archive: https://eol.jsc.nasa.gov/SearchPhotos/photo.pl?mission=ISS073&roll=E&frame=281502 Credit: Nichole Ayers / NASA JSC / ESRS / Simeon Schmauß
Image of planet Uranus taken by the James Webb Space Telescope (JWST). Source: www.flickr.com/photos/192271236@N03/54879990600/sizes/o/ Credit: NASA/ESA/CSA/STScI/AndreaLuck CC BY Colourised image created processing data from: mast.stsci.edu NASA/ESA JWST Webb Space Telescope Instrument: NIRCAM Title: CAL-NRC-421: NIRCam Linearity Characterization Target: Uranus Time: 2025-10-06 Filters: F150W2-F162M, F410M Observation ID: jw08975-o001_t001_nircam_f150w2-f162m-sub320, jw08975-o001_t001_nircam_clear-f410m-sub320 Proposal PI: Varun Bajaj PI Institution: Space Telescope Science Institute Proposal ID: 8975 www.stsci.edu/jwst-program-info/program/?program=8975 Credit: NASA/ESA/CSA/STScI/AndreaLuck CC BY
Bracket for "BSky Planetary Science Image of 2025" contest, featuring small icons of 16 images grouped into four quarter-finals. Then there were two semi-finals and the filled in spots of the final with Uranus on the left and a lightning into the Earths atmosphere on the right. There are winner placeholders is still just a question mark. All is set on a lunar surface backdrop.
Final machup of planetary science image of the year with "Uranus as seen by JWST" vs "Gigantic TLE above Mexico seen from the ISS". Uranus image description: Image of planet Uranus taken by the James Webb Space Telescope (JWST). Source: www.flickr.com/photos/192271236@N03/54879990600/sizes/o/ Credit: NASA/ESA/CSA/STScI/AndreaLuck CC BY Colourised image created processing data from: mast.stsci.edu Instrument: NIRCAM Title: CAL-NRC-421: NIRCam Linearity Characterization Target: Uranus Time: 2025-10-06 Filters: F150W2-F162M, F410M Observation ID: jw08975-o001_t001_nircam_f150w2-f162m-sub320, jw08975-o001_t001_nircam_clear-f410m-sub320 Description Earth: On July 3rd, astronaut Nichole Ayers photographed a gigantic jet from the ISS. These rare upward directed electrical discharges extend ~90-100 km high into the mesosphere. The jet originated from a thunderstorm over Northern Mexico, with city lights from South Texas and the green airglow layer visible along Earth’s limb. I processed this image from the RAW file, adjusting the color profile, white balance and contrast and applied Lightroom's machine learning denoise with low strength. The RAW was provided to me by Frankie Lucena, his analysis of the event, correlating it to measurements from the Geostationary Lightning mapper and ELF-VLF radio signals can be found here: https://spaceweathergallery2.com/indiv_upload.php?upload_id=224355 City annotations referenced from Riccardo Rossi: https://x.com/RikyUnreal/status/1942367538714734609 Original image listing in the NASA archive: https://eol.jsc.nasa.gov/SearchPhotos/photo.pl?mission=ISS073&roll=E&frame=281502 Credit: Nichole Ayers / NASA JSC / ESRS / Simeon Schmauß
Description by Simeon Schmauß (https://www.flickr.com/photos/semeion/54664805569/): On July 3rd, astronaut Nichole Ayers photographed a gigantic jet from the ISS. These rare upward directed electrical discharges extend ~90-100 km high into the mesosphere. The jet originated from a thunderstorm over Northern Mexico, with city lights from South Texas and the green airglow layer visible along Earth’s limb. I processed this image from the RAW file, adjusting the color profile, white balance and contrast and applied Lightroom's machine learning denoise with low strength. The RAW was provided to me by Frankie Lucena, his analysis of the event, correlating it to measurements from the Geostationary Lightning mapper and ELF-VLF radio signals can be found here: https://spaceweathergallery2.com/indiv_upload.php?upload_id=224355 City annotations referenced from Riccardo Rossi: https://x.com/RikyUnreal/status/1942367538714734609 Original image listing in the NASA archive: https://eol.jsc.nasa.gov/SearchPhotos/photo.pl?mission=ISS073&roll=E&frame=281502 Credit: Nichole Ayers / NASA JSC / ESRS / Simeon Schmauß
Full results of the second semi-final are shown as a list with bars that extend to the respective percentage of votes. "Gigantic TLE* above Mexico seen from the ISS" got 72.3% (34 votes), "Comet C/2025 A6 (Lemmon) and a meteor train" got 27.7% (10 votes). The bottom panel shows how the number of votes per day and total number of votes changed over time.
Description by Simeon Schmauß (https://www.flickr.com/photos/semeion/54664805569/): On July 3rd, astronaut Nichole Ayers photographed a gigantic jet from the ISS. These rare upward directed electrical discharges extend ~90-100 km high into the mesosphere. The jet originated from a thunderstorm over Northern Mexico, with city lights from South Texas and the green airglow layer visible along Earth’s limb. I processed this image from the RAW file, adjusting the color profile, white balance and contrast and applied Lightroom's machine learning denoise with low strength. The RAW was provided to me by Frankie Lucena, his analysis of the event, correlating it to measurements from the Geostationary Lightning mapper and ELF-VLF radio signals can be found here: https://spaceweathergallery2.com/indiv_upload.php?upload_id=224355 City annotations referenced from Riccardo Rossi: https://x.com/RikyUnreal/status/1942367538714734609 Original image listing in the NASA archive: https://eol.jsc.nasa.gov/SearchPhotos/photo.pl?mission=ISS073&roll=E&frame=281502 Credit: Nichole Ayers / NASA JSC / ESRS / Simeon Schmauß
How many bright tails does Comet Lemmon have? Two. In the featured image it appears to have three, but why? The reason is that the zigzagging brown filament is a persistent meteor train that by luck appeared in front of the distant comet C/2025 A6 (Lemmon). A meteor train is the hot gas and fine dust that remains in the Earth's atmosphere and disperses in the seconds after a bright meteor flashes by. The two bright tails are the blue ion tail stretching across the image, and the white dust tail nearer the green coma on the upper left. All real comet tails originate from the nucleus of the comet inside the coma. The image was captured from Manciano, Italy. Source: https://apod.nasa.gov/apod/ap251027.html
Description by Simeon Schmauß (https://www.flickr.com/photos/semeion/54664805569/): On July 3rd, astronaut Nichole Ayers photographed a gigantic jet from the ISS. These rare upward directed electrical discharges extend ~90-100 km high into the mesosphere. The jet originated from a thunderstorm over Northern Mexico, with city lights from South Texas and the green airglow layer visible along Earth’s limb. I processed this image from the RAW file, adjusting the color profile, white balance and contrast and applied Lightroom's machine learning denoise with low strength. The RAW was provided to me by Frankie Lucena, his analysis of the event, correlating it to measurements from the Geostationary Lightning mapper and ELF-VLF radio signals can be found here: https://spaceweathergallery2.com/indiv_upload.php?upload_id=224355 City annotations referenced from Riccardo Rossi: https://x.com/RikyUnreal/status/1942367538714734609 Original image listing in the NASA archive: https://eol.jsc.nasa.gov/SearchPhotos/photo.pl?mission=ISS073&roll=E&frame=281502 Credit: Nichole Ayers / NASA JSC / ESRS / Simeon Schmauß
Bracket for "BSky Planetary Science Image of 2025" contest, featuring small icons of 16 images grouped into four quarter-finals. There are finalist placeholders against a lunar surface backdrop.
Image of planet Uranus taken by the James Webb Space Telescope (JWST). Source: www.flickr.com/photos/192271236@N03/54879990600/sizes/o/ Credit: NASA/ESA/CSA/STScI/AndreaLuck CC BY Colourised image created processing data from: mast.stsci.edu NASA/ESA JWST Webb Space Telescope Instrument: NIRCAM Title: CAL-NRC-421: NIRCam Linearity Characterization Target: Uranus Time: 2025-10-06 Filters: F150W2-F162M, F410M Observation ID: jw08975-o001_t001_nircam_f150w2-f162m-sub320, jw08975-o001_t001_nircam_clear-f410m-sub320 Proposal PI: Varun Bajaj PI Institution: Space Telescope Science Institute Proposal ID: 8975 www.stsci.edu/jwst-program-info/program/?program=8975 Credit: NASA/ESA/CSA/STScI/AndreaLuck CC BY
Full results of the first semi-final are shown as a list with bars that extend to the respective percentage of votes. "Uranus as seen by JWST" got 66% (39 votes), "Dust devil on Mars seen by the Perseverance rover" got 34% (20 votes). The bottom panel shows how the number of votes per day and total number of votes changed over time.
Image of planet Uranus taken by the James Webb Space Telescope (JWST). Source: www.flickr.com/photos/192271236@N03/54879990600/sizes/o/ Credit: NASA/ESA/CSA/STScI/AndreaLuck CC BY Colourised image created processing data from: mast.stsci.edu NASA/ESA JWST Webb Space Telescope Instrument: NIRCAM Title: CAL-NRC-421: NIRCam Linearity Characterization Target: Uranus Time: 2025-10-06 Filters: F150W2-F162M, F410M Observation ID: jw08975-o001_t001_nircam_f150w2-f162m-sub320, jw08975-o001_t001_nircam_clear-f410m-sub320 Proposal PI: Varun Bajaj PI Institution: Space Telescope Science Institute Proposal ID: 8975 www.stsci.edu/jwst-program-info/program/?program=8975 Credit: NASA/ESA/CSA/STScI/AndreaLuck CC BY
Looking back over the rover's chassis (bottom-right) and dark parallel wheel tracks trailing back into the distance, where a dust devil - a tall narrow swirling cone of light dust and grit whipped up by thermal currents in the thin dusty air - plays across the ground in front of some low hills. Source: https://bsky.app/profile/martian-observer.art/post/3lqff6e45xs2j Credit: NASA/JPL-Caltech/MSSS/Martian-Observer @martian-observer.art
Image of planet Uranus taken by the James Webb Space Telescope (JWST). Source: www.flickr.com/photos/192271236@N03/54879990600/sizes/o/ Credit: NASA/ESA/CSA/STScI/AndreaLuck CC BY Colourised image created processing data from: mast.stsci.edu NASA/ESA JWST Webb Space Telescope Instrument: NIRCAM Title: CAL-NRC-421: NIRCam Linearity Characterization Target: Uranus Time: 2025-10-06 Filters: F150W2-F162M, F410M Observation ID: jw08975-o001_t001_nircam_f150w2-f162m-sub320, jw08975-o001_t001_nircam_clear-f410m-sub320 Proposal PI: Varun Bajaj PI Institution: Space Telescope Science Institute Proposal ID: 8975 www.stsci.edu/jwst-program-info/program/?program=8975 Credit: NASA/ESA/CSA/STScI/AndreaLuck CC BY
Looking back over the rover's chassis (bottom-right) and dark parallel wheel tracks trailing back into the distance, where a dust devil - a tall narrow swirling cone of light dust and grit whipped up by thermal currents in the thin dusty air - plays across the ground in front of some low hills. Source: https://bsky.app/profile/martian-observer.art/post/3lqff6e45xs2j Credit: NASA/JPL-Caltech/MSSS/Martian-Observer @martian-observer.art
Bracket for "BSky Planetary Science Image of 2025" contest, featuring small icons of 16 images grouped into four quarter-finals. There are finalist placeholders against a lunar surface backdrop.
How many bright tails does Comet Lemmon have? Two. In the featured image it appears to have three, but why? The reason is that the zigzagging brown filament is a persistent meteor train that by luck appeared in front of the distant comet C/2025 A6 (Lemmon). A meteor train is the hot gas and fine dust that remains in the Earth's atmosphere and disperses in the seconds after a bright meteor flashes by. The two bright tails are the blue ion tail stretching across the image, and the white dust tail nearer the green coma on the upper left. All real comet tails originate from the nucleus of the comet inside the coma. The image was captured from Manciano, Italy. Source: https://apod.nasa.gov/apod/ap251027.html
Full results of the first quarter final are shown as a list with bars that extend to the respective percentage of votes. "Comet Lemmon and a meteor train" got 38.8% (19 votes), "Asteroid Donaldjohanson seen by Lucy" got 34.7% (17 votes), " Spherules returned from asteroid Bennu" got 18.4% (9 votes), and " Spherules on Mars seen by Perseverance" got 8.2% (4 votes).
How many bright tails does Comet Lemmon have? Two. In the featured image it appears to have three, but why? The reason is that the zigzagging brown filament is a persistent meteor train that by luck appeared in front of the distant comet C/2025 A6 (Lemmon). A meteor train is the hot gas and fine dust that remains in the Earth's atmosphere and disperses in the seconds after a bright meteor flashes by. The two bright tails are the blue ion tail stretching across the image, and the white dust tail nearer the green coma on the upper left. All real comet tails originate from the nucleus of the comet inside the coma. The image was captured from Manciano, Italy. Source: https://apod.nasa.gov/apod/ap251027.html
The asteroid Donaldjohanson as seen by the Lucy Long-Range Reconnaissance Imager (L’LORRI). This is one of the most detailed images returned by NASA’s Lucy spacecraft during its flyby. This image was taken at 1:51 p.m. EDT (17:51 UTC), April 20, 2025, near closest approach, from a range of approximately 660 miles (1,100 km). The spacecraft’s closest approach distance was 600 miles (960 km), but the image shown was taken approximately 40 seconds beforehand. The image has been sharpened and processed to enhance contrast. Source: https://lucy.swri.edu/DonaldjohansonImageGallery.html Credit: NASA/Goddard/SwRI/Johns Hopkins APL/NOIRLab
The Bennu samples revealed magnetite (iron oxide) crystals less than 1 micrometer in size. The individual crystals included hexahedra (six-sided cubes) and octahedra (eight-sided polyhedra). Rob Wardell/Tim Gooding/Tim McCoy/Smithsonian Source: https://edition.cnn.com/2025/01/29/science/asteroid-bennu-building-blocks-of-life
Unusual “witch hat” or “helmet-shaped” rock composed entirely of smaller spherules. The image was taken by the NASA rover Perseverance on Mars. Source: https://science.nasa.gov/blog/shocking-spherules/ https://jackiebranc.site/nasas-perseverance-rover-journey/
How many bright tails does Comet Lemmon have? Two. In the featured image it appears to have three, but why? The reason is that the zigzagging brown filament is a persistent meteor train that by luck appeared in front of the distant comet C/2025 A6 (Lemmon). A meteor train is the hot gas and fine dust that remains in the Earth's atmosphere and disperses in the seconds after a bright meteor flashes by. The two bright tails are the blue ion tail stretching across the image, and the white dust tail nearer the green coma on the upper left. All real comet tails originate from the nucleus of the comet inside the coma. The image was captured from Manciano, Italy. Source: https://apod.nasa.gov/apod/ap251027.html
The asteroid Donaldjohanson as seen by the Lucy Long-Range Reconnaissance Imager (L’LORRI). This is one of the most detailed images returned by NASA’s Lucy spacecraft during its flyby. This image was taken at 1:51 p.m. EDT (17:51 UTC), April 20, 2025, near closest approach, from a range of approximately 660 miles (1,100 km). The spacecraft’s closest approach distance was 600 miles (960 km), but the image shown was taken approximately 40 seconds beforehand. The image has been sharpened and processed to enhance contrast. Source: https://lucy.swri.edu/DonaldjohansonImageGallery.html Credit: NASA/Goddard/SwRI/Johns Hopkins APL/NOIRLab
The Bennu samples revealed magnetite (iron oxide) crystals less than 1 micrometer in size. The individual crystals included hexahedra (six-sided cubes) and octahedra (eight-sided polyhedra). Rob Wardell/Tim Gooding/Tim McCoy/Smithsonian Source: https://edition.cnn.com/2025/01/29/science/asteroid-bennu-building-blocks-of-life
Unusual “witch hat” or “helmet-shaped” rock composed entirely of smaller spherules. The image was taken by the NASA rover Perseverance on Mars. Source: https://science.nasa.gov/blog/shocking-spherules/ https://jackiebranc.site/nasas-perseverance-rover-journey/
How many bright tails does Comet Lemmon have? Two. In the featured image it appears to have three, but why? The reason is that the zigzagging brown filament is a persistent meteor train that by luck appeared in front of the distant comet C/2025 A6 (Lemmon). A meteor train is the hot gas and fine dust that remains in the Earth's atmosphere and disperses in the seconds after a bright meteor flashes by. The two bright tails are the blue ion tail stretching across the image, and the white dust tail nearer the green coma on the upper left. All real comet tails originate from the nucleus of the comet inside the coma. The image was captured from Manciano, Italy. Source: https://apod.nasa.gov/apod/ap251027.html
The asteroid Donaldjohanson as seen by the Lucy Long-Range Reconnaissance Imager (L’LORRI). This is one of the most detailed images returned by NASA’s Lucy spacecraft during its flyby. This image was taken at 1:51 p.m. EDT (17:51 UTC), April 20, 2025, near closest approach, from a range of approximately 660 miles (1,100 km). The spacecraft’s closest approach distance was 600 miles (960 km), but the image shown was taken approximately 40 seconds beforehand. The image has been sharpened and processed to enhance contrast. Source: https://lucy.swri.edu/DonaldjohansonImageGallery.html Credit: NASA/Goddard/SwRI/Johns Hopkins APL/NOIRLab
Bracket for "BSky Planetary Science Image of 2025" contest, featuring small icons of 16 images grouped into four quarter-finals. There are semi-finalists and finalist placeholders against a lunar surface backdrop.
Image of planet Uranus taken by the James Webb Space Telescope (JWST). Source: www.flickr.com/photos/192271236@N03/54879990600/sizes/o/ Credit: NASA/ESA/CSA/STScI/AndreaLuck CC BY Colourised image created processing data from: mast.stsci.edu NASA/ESA JWST Webb Space Telescope Instrument: NIRCAM Title: CAL-NRC-421: NIRCam Linearity Characterization Target: Uranus Time: 2025-10-06 Filters: F150W2-F162M, F410M Observation ID: jw08975-o001_t001_nircam_f150w2-f162m-sub320, jw08975-o001_t001_nircam_clear-f410m-sub320 Proposal PI: Varun Bajaj PI Institution: Space Telescope Science Institute Proposal ID: 8975 www.stsci.edu/jwst-program-info/program/?program=8975 Credit: NASA/ESA/CSA/STScI/AndreaLuck CC BY
Full results of the first quarter final are shown as a list with bars that extend to the respective percentage of votes. " Uranus as seen by JWST" got 56.3% (36 votes), "Jupiter during Perijove 69" got 18.8% (12 votes), "Saturn Equinox: The Rings Appear to Disappear" got 15.6% (10 votes), and "Jupiter during Perijove 72" got 9.4% (6 votes).
Image of planet Uranus taken by the James Webb Space Telescope (JWST). Source: www.flickr.com/photos/192271236@N03/54879990600/sizes/o/ Credit: NASA/ESA/CSA/STScI/AndreaLuck CC BY Colourised image created processing data from: mast.stsci.edu NASA/ESA JWST Webb Space Telescope Instrument: NIRCAM Title: CAL-NRC-421: NIRCam Linearity Characterization Target: Uranus Time: 2025-10-06 Filters: F150W2-F162M, F410M Observation ID: jw08975-o001_t001_nircam_f150w2-f162m-sub320, jw08975-o001_t001_nircam_clear-f410m-sub320 Proposal PI: Varun Bajaj PI Institution: Space Telescope Science Institute Proposal ID: 8975 www.stsci.edu/jwst-program-info/program/?program=8975 Credit: NASA/ESA/CSA/STScI/AndreaLuck CC BY
Image of planet Uranus taken by the James Webb Space Telescope (JWST). Source: www.flickr.com/photos/192271236@N03/54879990600/sizes/o/ Credit: NASA/ESA/CSA/STScI/AndreaLuck CC BY Colourised image created processing data from: mast.stsci.edu NASA/ESA JWST Webb Space Telescope Instrument: NIRCAM Title: CAL-NRC-421: NIRCam Linearity Characterization Target: Uranus Time: 2025-10-06 Filters: F150W2-F162M, F410M Observation ID: jw08975-o001_t001_nircam_f150w2-f162m-sub320, jw08975-o001_t001_nircam_clear-f410m-sub320 Proposal PI: Varun Bajaj PI Institution: Space Telescope Science Institute Proposal ID: 8975 www.stsci.edu/jwst-program-info/program/?program=8975 Credit: NASA/ESA/CSA/STScI/AndreaLuck CC BY
Jupiter is filling half of the image with stroms all around. The image is processed to show the planet in different hues of blue. Source: https://www.missionjuno.swri.edu/junocam/processing?id=17701
Six images of Saturn and its rings over the years. One image per year from 2020 where the rings are clearly visible. In 2025 Saturn crossed Equinox which means that the rings were edge on and can hardly be seen. Source: https://telescopius.com/pictures/view/224831/planet/by-natan_fontes?gallery_order=created_timestamp&gallery_page=1&gallery_username=Natan_Fontes
Image of planet Uranus taken by the James Webb Space Telescope (JWST). Source: www.flickr.com/photos/192271236@N03/54879990600/sizes/o/ Credit: NASA/ESA/CSA/STScI/AndreaLuck CC BY Colourised image created processing data from: mast.stsci.edu NASA/ESA JWST Webb Space Telescope Instrument: NIRCAM Title: CAL-NRC-421: NIRCam Linearity Characterization Target: Uranus Time: 2025-10-06 Filters: F150W2-F162M, F410M Observation ID: jw08975-o001_t001_nircam_f150w2-f162m-sub320, jw08975-o001_t001_nircam_clear-f410m-sub320 Proposal PI: Varun Bajaj PI Institution: Space Telescope Science Institute Proposal ID: 8975 www.stsci.edu/jwst-program-info/program/?program=8975 Credit: NASA/ESA/CSA/STScI/AndreaLuck CC BY
Jupiter is filling half of the image. The equatorial jet is visible with storms circulating around the planet. The image is processed to show the planet in different hues of red and blue. Source: https://www.missionjuno.swri.edu/junocam/processing?source=public&ob_from=&ob_to=&phases%5B%5D=PERIJOVE+69&users%5B%5D=21938&perpage=16
Jupiter is filling half of the image with stroms all around. The image is processed to show the planet in different hues of blue. Source: https://www.missionjuno.swri.edu/junocam/processing?id=17701
Six images of Saturn and its rings over the years. One image per year from 2020 where the rings are clearly visible. In 2025 Saturn crossed Equinox which means that the rings were edge on and can hardly be seen. Source: https://telescopius.com/pictures/view/224831/planet/by-natan_fontes?gallery_order=created_timestamp&gallery_page=1&gallery_username=Natan_Fontes
Image of planet Uranus taken by the James Webb Space Telescope (JWST). Source: www.flickr.com/photos/192271236@N03/54879990600/sizes/o/ Credit: NASA/ESA/CSA/STScI/AndreaLuck CC BY Colourised image created processing data from: mast.stsci.edu NASA/ESA JWST Webb Space Telescope Instrument: NIRCAM Title: CAL-NRC-421: NIRCam Linearity Characterization Target: Uranus Time: 2025-10-06 Filters: F150W2-F162M, F410M Observation ID: jw08975-o001_t001_nircam_f150w2-f162m-sub320, jw08975-o001_t001_nircam_clear-f410m-sub320 Proposal PI: Varun Bajaj PI Institution: Space Telescope Science Institute Proposal ID: 8975 www.stsci.edu/jwst-program-info/program/?program=8975 Credit: NASA/ESA/CSA/STScI/AndreaLuck CC BY
Bracket for "BSky Planetary Science Image of 2025" contest, featuring small icons of 16 images grouped into four quarter-finals. There are semi-finalists and finalist placeholders against a lunar surface backdrop.