On the other were two more figures in space suits, with the tiniest Stars and Stripes planted in the lunar soil. Cruz ...

NASA is set to launch the Pandora space telescope on January 11 to study the atmospheres of distant exoplanets. The mission ...

If scientists are able to inspect it in person, and they find that Mars was indeed once alive with microbes, we would know ...

Is it alien? Is it natural? Those questions have followed the interstellar comet known as 3I/ATLAS since it entered our solar system last year from beyond our own star system. A new study released ...

On January 5, 2005, astronomers at NASA discovered Eris, the second-largest dwarf planet in the solar system. Eris is just slightly smaller than Pluto, and it orbits the sun about three times farther ...

In July, researchers using the NASA-funded Asteroid Terrestrial-impact Last Alert System survey telescope in Chile made an exceedingly rare discovery: a mysterious object passing through the solar ...

When we imagine a planet, we think of one like ours, orbiting a star. But some have a far lonelier existence, drifting through interstellar space without a sun to call their own. Known as “rogue” or ...

Want to know when each planet will be at its best or when you can catch eye-catching planetary pairings in 2026? This guide breaks down the major planetary events of the year, from conjunctions to ...

Roughly 1,000 light-years away from Earth, a gigantic disk of gas and dust is swirling around a young star and giving rise to new planets. Not only is it the largest planet-forming disk astronomers ...

New discoveries and fresh looks at familiar worlds show how far exoplanet science has come — and how much remains unknown. When you purchase through links on our site, we may earn an affiliate ...

Scientists using the James Webb telescope observed a distant exoplanet with an atmosphere of soot and diamonds, challenging all explanations. When you purchase through links on our site, we may earn ...

3I/ATLAS is only the third interstellar object ever observed traveling through the solar system, following 1I/'Oumuamua in 2017 and 2I/Borisov in 2019. Each encounter has sparked fascination—and ...