For a long time, scientists thought that only actively star-forming galaxies should be observed in the very early Universe.

NASA's SPHEREx, which will map millions of galaxies across the entire sky, captured one of its first exposures March 27. The ...

We've known for over 30 years that there are other stellar systems in our galaxy, but we don't have any idea how many there ...

"These objects really could be anywhere in the solar system at any given time." One million alien visitors from another star system could already be lurking in the solar system. We aren't talking ...

Astronomers have uncovered a spiral galaxy nearly a billion light-years away that hosts a supermassive black hole launching ...

The Small Magellanic Cloud, a dwarf galaxy about 200,000 light-years from the solar system, can be seen with the naked eye ...

A new discovery using the James Webb Telescope has implied we may live in a black hole. The telescope, launched by NASA three ...

Explore Earth and its relationships with a plethora of planets, stars and galaxies in its cosmic family, Laniakea, the ...

So exactly how many solar system moons have we found? The answer, it turns out, depends on your definition of a moon. But this is likely just "the tip of the iceberg," Edward Ashton, an astronomer ...

"Euclid shows itself once again to be the ultimate discovery machine. It is surveying galaxies on the grandest scale, ...

They also orbit near their stars, in many cases closer than Mercury is to the Sun. Our solar system, in contrast, appears to be different. “[Planetary scientists] have thought our solar system ...

Mar. 17, 2025 — The James Webb Space Telescope has captured its first direct images of carbon dioxide in a planet outside the solar system in HR 8799, a multiplanet system 130 light-years away ...