The planets in order from the Sun are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. If you include the ...

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

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

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

Our solar system is a pretty wild place, full of amazing stuff. From the giant Sun to the tiny rocks floating around, there’s ...

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

Scientists have scored a pristine view of a pair of exotic worlds orbiting a star more than 300 light-years away — one with sand-like clouds and another surrounded in space by moon-making material.

Using the James Webb Space Telescope, astronomers have discovered the smallest brown dwarfs ever seen with the potential to ...

Adams and Batygin discovered that, approximately 3.8 million years after the solar system's first solids appeared, Jupiter’s radius was nearly twice its current size.

A Caltech and University of Michigan study shows that Jupiter, the Solar System's heavyweight already, would have been able to contain 2,000 Earths within it at one time. That enormous size ...

You don't need us to tell you that Jupiter, which has more than twice the mass of all the other planets in the Solar System combined, is the biggest game in town (other than the Sun, at least.) But ...