NASA's plans to return astronauts to the moon through the Artemis program and ultimately send humans to Mars highlight just ...
Dark matter is an elusive form of matter that almost never emits, absorbs or reflects light, while only weakly interacting with regular matter. These properties make it very difficult to detect using ...
Modern cosmology assumes dark matter exists. But what makes us so certain that dark matter is the answer—and what if we're wrong?
New research suggests dark matter could leave a tiny but discernible imprint in the cacophony of ripples in spacetime called "gravitational waves" that ring through the cosmos whe ...
When an invisible entity making up 85% of the universe's mass stumps the greatest scientific minds of our time, awe is an understandable response.
The universe is a cosmic web, woven from vast filaments that connect galaxies and clusters. Elena Pinetti explains how these ...
NASA's Hubble Space Telescope captures the magnificent starry population of the Coma Cluster of galaxies, one of the densest known galaxy collections in the universe — and where the effect of dark ...
We see evidence for merging supermassive black holes everywhere we look. One problem: We’re not exactly sure how they manage to do it. Recently, a team of astronomers has proposed that a particular ...
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