Astrophysics | Page 6 of 46 | Astronomy.com

Quantum entanglement — when the states of two particle are intertwined by the laws of quantum mechanics — has long vexed physicists. But the phenomenon may also hold the key to understanding how time emerged. Credit: J Jurik Peter/Shutterstock

The struggle to find the origins of time

Exotic Objects, Milky Way

How we captured the first image of the supermassive black hole at the center of the Milky Way

What makes supermassive black holes like Sagittarius A* shine?

The Planck era: Imagining our infant universe

Robotic Spaceflight, Space Exploration

NASA is ready to start building its next cosmic mapmaker

Astronomers detect first potential ‘rogue’ black hole

Cosmic-ray scans to explore hidden secrets of Great Pyramid of Giza

Galaxies, Planets

Astronomy’s 10-year wish list: Big money, bigger telescopes and the biggest questions in science

Snapshot: Pulsar found leaking antimatter

Cosmology, Science

Randomness in data could help physicists find evidence for quantum gravity

Astronomy for beginners

When astronomers get stuck

Astronomers traced this FRB back to a strange place