Jupiter is the largest planet in the solar system. It's about 11 times wider than Earth with an equatorial diameter of 88,846 ...

Dimethyl sulfide is cool—and a potential biosignature—but scientists are urging caution before we declare a plankton party ...

Scientists know of over a dozen planets that orbit twin stars like the fictional "Star Wars" desert planet Tatooine. More ...

His adventures searching for the mysterious dwarf planets continue ... Trump's tariffs Trump claims his tariffs are bringing in $2 billion a day - the actual figure is just a fraction of that ...

While the discovery made by JWST is undeniably a “revolutionary moment” for us, it is not an Archimedes-type “eureka” moment.

So in some sense, alien worlds were not first discovered in the 1990s or even the 1980s. It took nearly a century to fully understand it, but the first evidence for exoplanets was found in 1917.

A molecule detected on a planet 124 light-years away is produced on Earth by decaying phytoplankton and other microbes. There ...

It’s around 2.4 billion years old, and like most M-dwarf stars, it might throw flares or have spots, making it tricky to get clear readings of its planets. Bonus fact: K2-18 also has a sibling ...