Exoplanets

This planet triggers flares on its star—spelling its ultimate doom

Amid harsh cuts, the Trump administration has proposed canceling the nearly ready-to-launch Nancy Grace Roman Space Telescope

According to new simulations, many, even most, planets get ejected from their star early in their history

Evidence of alien worlds goes back farther than you think

Four small, newly discovered worlds are less than six light-years away from Earth, and their discovery reinforces a cautionary tale from planet hunting’s prehistory

It’s neither fast nor food, but a spectacular object called HH 30 looks appetizing for astronomers in a new image from the James Webb Space Telescope

A newly confirmed exoplanet around a nearby sunlike star might be astronomers’ best chance yet to look for life beyond the solar system—but it’s still no place like home

The nearby star Vega, featured in the 1997 movie Contact, appears to have a smooth disk devoid of giant planets for reasons we can’t explain

This blazingly fast star is shooting through the Milky Way with a planet in tow

The Jupiter-like world Epsilon Indi Ab is one of the coldest—and closest—exoplanets that astronomers have ever seen

Alien worlds that glow like lightbulbs or harbor molten-rock rain are revealing planets’ profound cosmic diversity—and pointing the way toward finding those that truly resemble our own familiar Earth

The atmosphere of exoplanet WASP-76b may rain iron and form a strange, rainbow-like phenomenon called a “glory” never yet seen outside the solar system