Posts by 

Paul Scott Anderson

Webb observes Chariklo’s rings during occultation

NASA's Webb telescope took its 1st look at tiny asteroid Chariklo's rings, showing they contain water ice. Webb used a stellar occultation to observe the rings.

New Milky Way survey reveals billions of objects

Astronomers at NOIRLab, using the Dark Energy Camera in Chile, have released a new Milky Way survey showing billions of objects in the galactic plane.

Permanently shadowed crater captured by ShadowCam

NASA's ShadowCam instrument on the Danuri lunar orbiter has sent back its 1st image. It shows details inside a permanently shadowed crater on the moon.

Life on Io? An astrobiologist says it’s possible

Could there be microbial life on Io? Jupiter's hostile volcanic moon seems an unlikely home, but astrobiologist Dirk Schulze-Makuch says it's not impossible.

Discovery of opal on Mars boosts chances for life

NASA's Curiosity rover has found water-rich opal on Mars. Its presence indicates that there was an extensive and potentially habitable subsurface environment.

Milky Way’s farthest stars reach halfway to Andromeda

Astronomers have discovered the Milky Way's farthest stars in our galaxy's huge stellar halo. The most distant stars are almost halfway to the Andromeda galaxy.

Europa Clipper gets its gas-sniffing ‘nose’

NASA has receieved an advanced mass spectrometer for the Europa Clipper mission. It will analyze gases for clues about the ocean moon's habitability.

Help NASA study exoplanets with Exoplanet Watch

Do you want to help NASA study exoplanets? Now you can, with the Exoplanet Watch citizen science project. All you need is a telescope or a smartphone.

How to find life on Enceladus? Look in the plumes

Do we need to drill through miles of ice to find life on Enceladus? A new study says a simpler strategy is to just re-analyze the moon's water vapor plumes.

Jupiter’s moon Io: Global magma ocean, or hot metal core?

2 new research papers debate whether Jupiter's moon Io has a magma ocean or a hot metal core. The results were presented at the AGU22 meeting this month.