Featured in exoplanets
These strange radio signals might not be coming from stars
Strange radio signals from red dwarfs could be the start of a whole new way to look for exoplanets.
Mars may be too small to have ever been habitable
New research shows that size matters when cultivating a world that can hold onto water and sustain life.
These scientists spent decades pushing NASA to go back to Venus. Now they’re on a hot streak.
Our next-door planet is similar to Earth in size and composition, but extreme conditions made Venus a hellscape. Devoted researchers want to know what caused their wildly divergent paths.
Why aren’t there more super Earth-sized exoplanets? Astronomers think they’ve figured it out.
Mid-sized exoplanets seem to only appear after shedding their atmospheres over billions of years.
Astronomers cooked up alien atmospheres in an oven
The secret ingredient is meteorite powder.
These 6 exoplanets somehow orbit their star in perfect rhythm
Planetary systems are not supposed to form like this.
This alien world could help us find Planet Nine in our own solar system
The gas giant orbits a pair of stars in a far-off system.
A deep-space telescope spied an exoplanet so hot it can vaporize iron
It orbits its mega-hot host star almost every three days.
A strange dusty disk could hide a planet betwixt three stars
The unique system could teach us about how planets are born.
Hubble just captured a lunar eclipse for the first time ever
The act could even reveal how to look for life on alien planets.