Morning light is mostly a matter of geometry. The sun rises in the east, so windows that face that direction catch the first ...

A huge galaxy cluster sitting7 billion light-years from Earth is giving astronomers a puzzle they still can’t quite solve.

Suppose an alien civilization discovers Earth and decides to investigate. Before it chooses a landing site or considers how ...

The Roman telescope is NASA’s newest space observatory. Every 10 months, it will get the equivalent of about 1000 years' worth of Hubble observations. Will it find the answers to our questions about ...

Researchers at the Linac Coherent Light Source (LCLS) at the U.S. Department of Energy's SLAC National Accelerator Laboratory have measured the shortest high-energy X-ray pulses ever recorded at an ...

In an existing theory of gravity, the same present-day matter density can fit two very different histories of the universe.

Why is there so much more matter than antimatter in the universe we can see? Credit: NASA’s Goddard Space Flight Center. The ...

Learn how Nobel winner Francis Halzen's IceCube work revealed high-energy cosmic neutrinos and opened a new era in astronomy.

LEMONT, Ill., October 22, 2026 -- ( BUSINESS WIRE )--Researchers at the U.S. Department of Energy's (DOE) Argonne National ...

NASA’s Nancy Grace Roman Space Telescope has exceeded expectations after engineers made incredibly tiny adjustments to ...

A solar-like black hole eruption reveals a familiar X-ray timing pattern, linking magnetic energy release with a fast wind ...

Charging a battery directly with sunlight — no solar panel anywhere in the circuit — is something scientists have been ...