A.M. EST on Jan. 1, 2019 New Horizons made its closest approach to 2014 MU69, now named Arrokoth (though at the time, it had ...

Is 3I/ATLAS a natural comet or an alien probe? Harvard's Avi Loeb explores the mystery of its sunward 'anti-tail' and what it ...

From astronauts looping around the moon to spacecraft reaching Mercury and asteroids near Earth, 2026 is shaping up to be a ...

So here, as ever, are my ten best reads of 2025, in no particular order as the say on the game shows, with my top pick at the ...

Every sign brings something to the celestial table. Here's what you should know about the zodiac signs, including strengths, ...

Researchers have confirmed the mass of a free-floating planet thanks to a lucky convergence of ground- and space-based ...

Just days into the New Year, on January 6, NASA will begin spacewalks outside the International Space Station to prepare for ...