Sam Crossley
@space-rocks.bsky.social
Planetary Geoscientist at the Lunar & Planetary Laboratory and Astromaterials PI of the Nonlinear Optical Mineralogy (NOM) group at the University of Arizona. Also interested in experimental petrology/geochemistry and remote sensing. www.samcrossley.space
Reposted by Sam Crossley
Meet your new cosmic neighbors ☄️
Introducing a swarm of over 2100 new asteroids discovered by NSF–DOE Rubin Observatory!
Rubin discovered these asteroids in about 10.5 hours of observing across 7 nights.
They've never been seen by humanity before...until now.🔭🧪
youtu.be/DTuq-vBsDJE
Introducing a swarm of over 2100 new asteroids discovered by NSF–DOE Rubin Observatory!
Rubin discovered these asteroids in about 10.5 hours of observing across 7 nights.
They've never been seen by humanity before...until now.🔭🧪
youtu.be/DTuq-vBsDJE
June 23, 2025 at 3:51 PM
Meet your new cosmic neighbors ☄️
Introducing a swarm of over 2100 new asteroids discovered by NSF–DOE Rubin Observatory!
Rubin discovered these asteroids in about 10.5 hours of observing across 7 nights.
They've never been seen by humanity before...until now.🔭🧪
youtu.be/DTuq-vBsDJE
Introducing a swarm of over 2100 new asteroids discovered by NSF–DOE Rubin Observatory!
Rubin discovered these asteroids in about 10.5 hours of observing across 7 nights.
They've never been seen by humanity before...until now.🔭🧪
youtu.be/DTuq-vBsDJE
We are very happy to share that our paper on planetary sulfide core formation was published in Nature Communications today! @naturecomms.bsky.social Congratulations to all my co-authors who made this possible. #planetsci
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Percolative sulfide core formation in oxidized planetary bodies - Nature Communications
Melting experiments with planetary materials show that oxidized core formation occurred via percolation of molten sulfide at low igneous temperatures.
www.nature.com
April 4, 2025 at 8:20 PM
We are very happy to share that our paper on planetary sulfide core formation was published in Nature Communications today! @naturecomms.bsky.social Congratulations to all my co-authors who made this possible. #planetsci
www.nature.com/articles/s41...
www.nature.com/articles/s41...
At LPSC, NOM group member Elana Alevy presented our multiphoton microscopy work for rapidly and nondestructively detecting tiny presolar SiC grains in meteorites. This work will change the way researchers study these rare, ancient minerals, and we are very excited about it. Great job, Elana!
March 12, 2025 at 7:29 PM
At LPSC, NOM group member Elana Alevy presented our multiphoton microscopy work for rapidly and nondestructively detecting tiny presolar SiC grains in meteorites. This work will change the way researchers study these rare, ancient minerals, and we are very excited about it. Great job, Elana!
Reposted by Sam Crossley
Reports are coming out that the administration is planning on cutting the NASA science budget by 50%. This would effectively end America’s space exploration program. Please consider filling out this form to send a message to the administration and your local representatives to protest these cuts.
Advocacy Action Center
The Planetary Society is organizing a new space constituency that is educated, empowered, and loud.
www.planetary.org
March 7, 2025 at 4:12 PM
Reports are coming out that the administration is planning on cutting the NASA science budget by 50%. This would effectively end America’s space exploration program. Please consider filling out this form to send a message to the administration and your local representatives to protest these cuts.
Reposted by Sam Crossley
Please sign to oppose mass layoffs at NASA:
www.planetary.org/advocacy-act...
www.planetary.org/advocacy-act...
Advocacy Action Center
The Planetary Society is organizing a new space constituency that is educated, empowered, and loud.
www.planetary.org
February 18, 2025 at 7:32 PM
Please sign to oppose mass layoffs at NASA:
www.planetary.org/advocacy-act...
www.planetary.org/advocacy-act...
Excited for 2 LPSC abstracts submitted from our nonlinear optical mineralogy group! One is on applications for multiphoton microscopy in curation (#1235) and another for rapid, nondestructive ID of presolar SiC (#1218). This figure is from the latter, showing signals from synthetic aggregates.
January 8, 2025 at 4:37 PM
Excited for 2 LPSC abstracts submitted from our nonlinear optical mineralogy group! One is on applications for multiphoton microscopy in curation (#1235) and another for rapid, nondestructive ID of presolar SiC (#1218). This figure is from the latter, showing signals from synthetic aggregates.
Here's a 3D rendering from our recent paper in Optics Express. Using our multiphoton microscope, we imaged a ~40 µm fluid inclusion about 70 µm below the sample surface. Currently working on applications to meteorites and returned samples! doi.org/10.1364/OE.539000
November 30, 2024 at 11:18 PM
Here's a 3D rendering from our recent paper in Optics Express. Using our multiphoton microscope, we imaged a ~40 µm fluid inclusion about 70 µm below the sample surface. Currently working on applications to meteorites and returned samples! doi.org/10.1364/OE.539000
Planetary science research account! Follow for the freshest updates on my current research. I promise lots of cool science with pretty pictures. Here's a sample from our most recent paper reporting the first systematic use of multiphoton microscopy for astromaterials.(www.doi.org/10.1364/OE.539000)
November 22, 2024 at 12:56 AM
Planetary science research account! Follow for the freshest updates on my current research. I promise lots of cool science with pretty pictures. Here's a sample from our most recent paper reporting the first systematic use of multiphoton microscopy for astromaterials.(www.doi.org/10.1364/OE.539000)