Tune in today (Jan. 16) to bid farewell to interstellar comet 3I/ATLAS, courtesy of a livestream from the Virtual Telescope ...

Dark nebulas are notoriously challenging to capture because they emit little to no light of their own. Meyer imaged LDN 1245 ...

Scientists have found new evidence suggesting that interstellar 3I/ATLAS is not an alien spaceship, as one conspiracy theory ...

Harvard astrophysicist Avi Loeb warns 3I/ATLAS, tagged a comet by NASA, may be a rare 'Black Swan' or Trojan Horse, urging ...

When astronomers first spotted a faint, fast-moving object racing through the outer Solar System in mid-2025, few expected it ...

Interstellar object 3I/ATLAS is on the opposite side of the sun from Earth - but several spacecraft are in the perfect position to get a closer look. As 3I/ATLAS warps and grows the closer it gets to ...

When 3I/ATLAS swept past the sun in late October 2025, it became only the third confirmed visitor from interstellar space ...

Astronomers have finally weighed a wandering “rogue” planet, uncovering a Saturn-mass world flung into the galaxy after a ...

Avi Loeb's new study of 3I/ATLAS reveals a 7.1-hour rotation and a bizarre solar alignment, raising questions about the ...

CAPE CANAVERAL, Fla. (AP) — A stray comet from another star swings past Earth this week in one last hurrah before racing back toward interstellar space. Discovered over the summer, the comet known as ...

NASA's 3I/ATLAS interstellar visitor sparks debate as Harvard's Avi Loeb suggests alien origins. Discover the 'X' shaped ...

Interstellar comet 3I-ATLAS is a rare cosmic visitor that may be older than our Sun, offering scientists a unique glimpse ...