Cosmic space is filled with continuous, diffuse high-energy radiation. To find out how this energy is produced, the scientists behind ESA’s Integral gamma-ray observatory have tried an unusual method: ...

When we gaze up at the night sky, we often marvel at the twinkling stars, distant planets, and expansive galaxies. Yet, beyond the visible spectrum lies a more mysterious aspect of the cosmos—cosmic ...

Ars Technica has been separating the signal from the noise for over 25 years. With our unique combination of technical savvy and wide-ranging interest in the technological arts and sciences, Ars is ...