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

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 ...

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

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

Stars often whip their planets with solar winds and radiation, pull them ever closer with gravity and sear them with heat.

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 ...

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.

Sedna will make its closest approach to the Sun in 2076, giving us a rare opportunity to visit the planetoid before it drifts ...

Over the last few years, the term "Goldilocks zone" has come to be widely used to describe the range of distances from a star ...

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 ...