Thanks to an enormous stroke of luck and serendipitous timing, astronomers were able to calculate the mass and distance of a ...

At half the size of Earth and one-tenth its mass, Mars is a featherweight as far as planets go. Yet new research reveals the ...

A mile-wide asteroid known as 2005 UK1 will safely pass Earth on Jan. 12, 2026, at 32 times the moon’s distance, posing no ...

In a blow to anyone dreaming that complex life may exist elsewhere in the universe, a new study suggests we're unlikely to ...

"The combination of extreme disk size, strong asymmetries, winds, and potential planet formation makes it the perfect ...

The space rock, known as "2026 AJ" and 40 feet in diameter, is hurtling toward our planet at around 20,500 miles per hour.

Astronomers have captured an exceptionally rare view of young planets in mid-transformation, revealing how bloated, giant worlds may shrink into the most common planets in the galaxy. Astronomers have ...

Astronomers may have finally worked out how planets between the size of Earth and Neptune – which aren't found in our Solar ...

Compared to our 4.5-billion-year-old sun, ​​the 20-million-year-old V1298 Tau is a stellar baby, making it ideal for ...

Astronomers just measured the mass of a free-floating planet without a star for the first time ...

The scale of the bycatch slaughter is a key factor in helping build global support for BBNJ. Another hugely harmful practice ...