Most explanations rely on "dark energy" to explain the Universe's accelerating expansion rate, but a new study takes a different path.

Scientists have released a new study on the arXiv preprint server that catalogs the universe by mapping huge clusters of ...

Astronomers are watching a new comet pass through our solar system with great interest. Based on its glow, the 33-billion-ton ...

Earth is big to us, about 24,901 miles (40,075 ... What could we call the 'seven wonders of the universe'? And while our sun seems huge, it looks puny compared to the biggest stars we know of. The sun ...

The early universe was already warm before reionization, revealing that the first stars did not flicker on in an icy cosmos.

Mon., June 23, 2025 A composite image of the supernova 1E0102.2-7219 contains X-rays from Chandra (blue and purple), visible light data from VLT’s MUSE instrument (bright red), and additional data ...

Just yesterday, NASA released a brand-new image taken by the James Webb Telescope. It shows thousands of galaxies in space. It's impressive. EXTREMELY impressive. It's here–the deepest, sharpest ...

The fact is, however, that the mass of black holes varies greatly out in the vast universe, and astronomers have recently discovered what they believe may be the biggest one ever found. They estimate ...