Boozers were decked with purple balloons and flags; murals were everywhere you looked; people donned Ozzy outfits, flooding ...

The Sun, our life-giving star, is slowly dying. In about 5 billion years, it will exhaust its fuel and transform into a red giant, altering the solar system forever. But long before that, the Sun’s ...

NASA astronaut Nichole Ayers captured an electrifying image of a giant lightning "sprite" shooting up over Mexico and ...

Even if Earth does survive, it won’t be pretty. The temperature of our planet will be about 1,300 degrees C, hot enough to ...

The "new stars" are best seen from the Southern Hemisphere, but people have spotted them from the United States by looking ...

The explosion of a star, called a supernova, is an immensely violent event. It usually involves a star more than eight times ...

The precursors of heavy elements might arise in the plasma underbellies of swollen stars or in smoldering stellar corpses.

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

TOI-6894 b, the largest exoplanet relative to its host star yet seen, doesn’t fit the most widely accepted formation model ...

Astronomers confirm TOI-5573 b, a rare, miniature Saturn-like planet orbiting a small star, challenging theories of planetary ...

Astronomers spotted exoplanet AT2021ueyL b, a gas giant 3,262 light-years away, using microlensing. It orbits in the galactic ...

Once a star reaches the end of its life stage and becomes a red giant, any chance for life is extinguished. This is also true for our Sun, which is expected to turn into a red giant in about five ...