I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the ...

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

NASA has begun taking 3,600 unique images each day to create a new map of the cosmos with its newly-launched SPHEREx ...

The Solar Orbiter has delivered the "highest resolution image ever of the Sun’s south pole" according to the European Space ...

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

The best telescopes for seeing planets will let you capture Saturn and Neptune in the same view. Watch out for Prime Day, which is your chance to save big on deep space observation.