Comet C/2025 R3 (PanSTARRS) might be the brightest comet of the year, scientists predict.

When interstellar visitor 3I/ATLAS exhibited some peculiar movements, speculation arose regarding potential alien origins.

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 ...

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

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 ...

Since the Kepler Space Telescope began its prowl for exoplanets in 2009, it has uncovered a strange pattern among these alien ...

Explore the incredible lengths humanity must go to reach the solar system’s giants. From months-long trips to Mars to ...

Among other things, the James Webb Space Telescope is designed to get us closer to finding habitable worlds around faraway ...

Which way is ‘down’ has a different answer depending on where you are on Earth, in the solar system, in our galaxy and beyond ...

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

Discovered by volunteer scientists, this alien planet is out of synch with its siblings ...

The findings from Pandora will complement data from the James Webb Space Telescope to give astronomers more insight into ...