Videos from Yosemite National Park show the iconic "Firefall" phenomenon glowing at Horsetail Fall inside the park.

Researchers have found that stars in the early universe may have formed from 'fluffy' molecular clouds. Using the ALMA telescope to observe the Small Magellanic Cloud -- whose environment is similar ...

Arctic daily sea ice extent continued to hover near record daily lows in January, with the ice edge well northward of its long-term average position in most areas. In contrast to the cold conditions ...

The clouds, composed of carbon dioxide ice crystals, glow in shades of red, green, and pearlescent hues in the martian ...

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

Patsy Cockerham is sharing these linear looking clouds captured on Thursday, Feb. 13 after a dreadful week of cold rain and ...

NASA’s Curiosity rover captured stunning images of Martian twilight clouds, revealing iridescent dry ice formations on Mars.

NASA’s Curiosity rover observed a feather-shaped iridescent cloud, offering insights into Martian atmospheric conditions.

The beauty of Uluwatu sunset in Bali places it at number 11 out of 25 best places to watch the sunset, surpassing the Burj ...

The Sun sets differently on Mars. Part of that is due to its distance from the star (an average of 142 million miles versus ...

Quakes recorded for the first time inside Greenland's biggest frozen river, the Northeast Greenland Ice Stream, suggest this ...