Even if Earth does survive, it won’t be pretty. The temperature of our planet will be about 1,300 degrees C, hot enough to ...

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

The host star, HIP 67522, is slightly larger and cooler than our Sun. But unlike our middle-aged star, this one is just 17 ...

Long theorized but never observed, the first known “planet with a death wish” is described by Ilin and her colleagues in a ...

Astronomers using the European Space Agency's Cheops mission have caught an exoplanet that seems to be triggering flares of ...

In a stellar nursery 460 light-years away, astronomers sharpened old ALMA data and spotted crisp rings and spirals swirling ...

The clingy planet orbits so close to its star, it triggers powerful explosions of radiation that eat away at its atmosphere.

Astronomers have discovered the first step in planet birth, finding hitherto unseen structures in 78 planetary disks in the ...

New research says that Earth could be ejected from our solar system if a passing star was to come close enough.

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new simulations show. By Katherine Kornei If our species manages to hang ...

Mars shines in the evening, and is joined briefly by Mercury. Jupiter joins Venus as the month goes on. And all month, look ...

Jupiter will be too close to the sun to see Tuesday, but it will move farther out in the dawn sky and on Aug. 12 will have a ...