An international team of astronomers reports the detection of the first pulsar by the Globular Clusters GMRT Pulsar Search ...

Today we shame cities that encircle themselves with freeways, but we also try to understand the logic of the ring road, orbital, or beltway (choose your terminology!). Come along on a tour of cities ...

Ahead of its dance with Saturn on Feb. 24, Mercury should be seen on Feb. 19 at magnitude -1.2 with binoculars 20 minutes ...

Two weeks ago, when Ars first wrote about the asteroid, designated 2024 YR4, NASA's Center for Near Earth Object Studies ...

See the top-selling releases among hardcover fiction and nonfiction, plus trade and mass market paperbacks for the sales week ...

Planet demographics reveal a puzzling lack of worlds in a certain size range throughout the galaxy F or centuries our solar ...

Gaia-4b, a giant exoplanet orbiting a small star, is the first planet confirmed using Gaia’s astrometric technique.

As civilizations advance, they may need to migrate across the galaxy, and some researchers speculate they could use their own stars as massive engines. New research explores the possibility of a ...

DARPA has announced a major shift in the final phase of its NOM4D program, transitioning from laboratory testing to small-scale orbital demonstrations. This move aims to ...

Scientists are studying Saturn's moon Titan to assess its tidal dissipation rate, the energy lost as it orbits the ringed planet with its massive gravitational force. Understanding tidal dissipation ...