The official number of exoplanets—planets outside our solar system—tracked by NASA has reached 6,000. Confirmed planets are ...

We like to think that our solar system is eternal, but one day, its very epicenter will die. Our Sun, like all stars, had a ...

Astronomers have identified a tiny quasi-moon, 2025 PN7, orbiting near Earth for about 60 years. This 62-foot-wide near-Earth ...

Earth will move between Saturn and the sun this weekend, offering prime views of Saturn in what's known as "opposition." Here's what to know.

Climate activist Bill McKibben said solar power’s rapid growth is good news, even if it could be bad news for Houston’s ...

While Saturn has been visible in the night sky all of September, this weekend, the ringed planet will shine its brightest.

The Kuiper Belt is loosely defined as a doughnut-shaped swath of space beginning just beyond the orbit of Neptune and ...

According to Dean Duffy, the new NASA administrator, a rock sample collected by the Perseverance rover was the "clearest sign ...

Andrews’s article notes that the cause of the observed acceleration of some items passing through our solar system is unclear ...

Three celestial bodies will meet up for one night in September in a cosmic conjunction that should be widely visible in the Kentucky sky. What to know ...

While Mars today only has a wispy remnant of an atmosphere, it may once have had one hundreds of times thicker with a ...

A team of scientists has investigated how Earth’s twin became so inhospitable, and whether the same will happen to our planet ...