Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A collision between ...

Astronomers have discovered 53 new supermassive black hole-powered quasars that are blasting out jets of matter at near light ...

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new simulations show. By Katherine Kornei If our species manages to hang on ...

It may not feel like it, but everything in the universe is in constant motion. Our Sun, with all its planets, orbits the center of the Milky Way, flying through the cosmos at around 450,000 miles per ...

There’s a bit of a paradox about our galaxy: it’s both jam-packed with stars and cavernously empty. The Milky Way is crowded in the sense that it holds hundreds of billions of stars, as well as ...

Objects such as 'Oumuamua, Borisov and recently 3I/ATLAS have opened our eyes to the reality that outsiders regularly visit our solar system — and we're about to start spotting a whole lot more of ...

The cosmos has delivered a visitor, a silent, icy interloper from the darkest reaches of our galaxy, and the world's most ...

So it’s confession time: I’ve been lying to you. I’ve said on many occasions that our Milky Way galaxy has a flat disk (like in this column or this one). But it’s not really flat—not even for a ...

An interstellar object – a comet from a distant star system – is passing through the space between Jupiter and Mars, and according to a recent study, Comet 3I/Atlas may be 3 billion years older than ...

The Milky Way could be coming to a sky near you. The billions of stars comprising our home galaxy should appear especially vibrant in late-May as the band arcs across the night sky. The reason has ...

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