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See the metal guts of a satellite in this wild X-ray view | Space photo of the day for Dec. 4, 2025

Using a high-energy X-ray system, they turned the satellite effectively transparent, revealing fuel and gas tanks, hidden ...
Newsweek

Astronaut Captures Lightning Strike as You’ve Never Seen Before—From Space

A "phenomenal" view of lightning striking between clouds has been captured from space. The incredible sighting was shared in an Instagram video posted by European Space Agency (ESA) astronaut Andreas ...
Space.com

The 1st light to flood the universe can help unravel the history of the cosmos. Here's how

The Cosmic Microwave Background carries with it a record of events throughout the 13.8-billion-year history of the universe. When you purchase through links on our site, we may earn an affiliate ...
Live Science

The universe is rippling with a faint 'gravitational wave background' created by colliding black holes, huge international study suggests

A 15-year search reveals the first evidence of a cosmic 'gravitational wave background' emitted by ancient, colliding black holes. When you purchase through links on our site, we may earn an affiliate ...
The New York Times

A New Search for Ripples in Space From the Beginning of Time

As it studies cosmic microwaves, the Simons Observatory in Chile aims to help prove or disprove cosmic inflation, a notion that the universe expanded rapidly in the moment after the Big Bang. Two of ...