As scientists delve deeper into a star system with seven rocky worlds, the prospect of one being a habitable planet seems to be quickly fading. Researchers who used the James Webb Space Telescope, a ...

With our free press under threat and federal funding for public media gone, your support matters more than ever. Help keep the LAist newsroom strong, become a monthly member or increase your support ...

(CNN) — Astronomers have found an Earth-size planet that isn’t like Earth at all. Instead, the exoplanet, called LP 791-18 d, is likely covered in volcanoes and may experience eruptions with the same ...

In a new study, a team of astrophysicists, including two researchers at CU Boulder, have discovered a small and rocky world orbiting a star far from Earth—similar to our own planet, perhaps, but much ...

What if all the planets suddenly doubled in size? Imagine the gravitational, atmospheric, and orbital upheaval across the ...

A newly discovered system of six planets circling a nearby Sun-like star may be the key to unlocking how planetary systems form. All between the size of Earth and Neptune, the worlds are orbiting in a ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. An international ...

The Science of Siblings is a series exploring the ways our siblings can influence us, from our money and our mental health all the way down to our very molecules. We'll be sharing these stories over ...