Gravity, as most people understand it, is the familiar force that pulls a falling apple toward Earth. But for astronomers and theoretical physicists, it is also a vexing invisible architect that guides the shape and evolution ...
General Physics
Apr 15, 2026
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333
Two new studies have measured the expansion of the universe in our immediate cosmic neighborhood using a novel method that analyzes the motion of two nearby galaxy groups within their surrounding cosmic flow. The results ...
Astronomy
Mar 11, 2026
4
120
Using ESA's Gaia satellite, astronomers have detected 87 stellar streams associated with globular clusters (GCs) in our Milky Way galaxy. The discovery, which doubles the number of known GC stellar streams, was detailed in ...
New observations from NASA's Chandra X-ray Observatory and other telescopes have captured a rare cosmic event: Two galaxy clusters have collided and are now poised to head back for another swipe at each other.
Astronomy
Jun 4, 2025
0
64
