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

Summer is here, and Mercury goes retrograde from July 17 until August 11 — the retrograde begins after the full moon lunar ...

A recent study has uncovered a dramatic interaction between a planet and its parent star that is reshaping our understanding ...

We have discovered two interstellar objects so far, ’Oumuamua and Comet 2I/Borisov. ’Oumuamua had no dust tail and a ...

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

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

Venus moves east as July progresses and stands 3° due north of Aldebaran on the 14th, after skirting the northern regions of ...

Learn more about WASP-121b, the exoplanet so hot it could vaporize iron.

This observatory was built to help scientists and astronomers to study the cosmos, and just in its first moments online, it ...

In the outer reaches of our solar system, far beyond the orbit of Pluto, lies Sedna, one of the most mysterious objects ever ...

What's happening in the skies over North Texas this month? July holds some spectacular sights in the night and morning sky.

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