Why sunspots are able to last so long has been a mystery for millenia, but a new observation technique revealed their secret. The equilibrium between magnetic fields and pressure allows the solar ...

Astronomers have discovered a "fossil" world lying in the outskirts of the solar system, according to new research.

The Subaru Telescope has made an exciting discovery: a small body beyond Pluto, with implications for the formation, evolution, and current structure of the outer solar system.

Astronomers have observed an object that originated from beyond our solar system, thought to be an interstellar comet, speeding through our celestial neighborhood.

An interstellar comet moving at a speed of over 40 miles per second is now in our solar system.

The Vera Rubin Telescope Observatory is now operational and is enable astronomers to explore galaxies, stars in the Milky Way, objects in the solar system, and all in a truly new way. In its first 10 ...

This telescope, operated by the National Solar Observatory, will offer even finer detail thanks to its larger size.

The James Webb telescope has captured some seriously cool direct images of a planet beyond our solar system. This is the telescope's first exoplanet discovery.

The telescope’s discoveries will include millions of supernovas exploding across the universe and millions of asteroids flying through our solar system. What’s New About This Telescope?

Sharpest-ever view of the Sun’s surface, using the NSF Inouye Solar Telescope, reveals ultra-fine magnetic “stripes,” known as striations, just 20 kilometers wide.

Solar energy stocks dropped sharply on Tuesday as the market digested cuts to renewable power tax credits in the Senate's version of the budget bill.