The iridescent cloud reveals new clues about ice formation in the Martian atmosphere (no little green men, sorry).

Scientists have unlocked the 3D structure of molecular clouds in the Milky Way’s center, using a groundbreaking X-ray technique. These cosmic clouds, vital for star formation, were illuminated by past ...

Jupiter’s famous clouds aren’t ammonia ice but a murky mix of chemicals, sitting lower in the atmosphere than expected. For years, astronomers believed that Jupiter’s upper clouds — responsible for it ...

"I feel so blessed to be taken care of by such amazing humans. Ski patrol, paramedics, Aspen Hospital, you're all the best," Umansky said.