Looking at this another way, if we'd known of a star with a planet that took as long as Jupiter to orbit, and started observations back in the mid-1990s, when the first exoplanets were discovered ...

Espinoza is a leader in the new massive James Webb Space Telescope study of rocky worlds, specifically to find out if planets ...

The newfound exoplanet, called Kepler-139f, is a gigantic world roughly twice the mass of Neptune and 35 times the mass of ...

The punishing radiation appears to be causing the planet to shed its atmosphere at a rate of at least 1 trillion grams per ...

NASA’s Transiting Exoplanet Survey Satellite (TESS) has made yet another exciting discovery—but it never works alone. Thanks to a recent study showcasing the efforts of professional astronomers and ...

A massive doomed exoplanet on a death spiral toward its parent star has three possible catastrophic fates. When you purchase ...

This week in space: Obama wants a Mars shot, you can help NASA search for gravity waves via the magic of distributed computing, and a Jupiter-class planet with rings so huge, they'd nearly reach ...

A new study sheds light on what Jupiter, often called the "architect" of the solar system, was like in the beginning. The giant planet has dramatically changed.

Potential discovery of new dwarf planet adds wrinkle to Planet Nine theory By Nick Butler, Fox News Published May 31, 2025, 6:00 a.m. ET ...

Jupiter is already the biggest planet by far in our solar system, but new research suggests it was somehow once even larger than it is now. Twice as large, in fact.