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DESI’s 3D map of the universe is complete!
Astronomers have completed the largest, most detailed 3D map of the universe ever made. It will help reveal how dark energy shapes the cosmos.
April 17, 2026
See and hear galaxies evolving in new simulations
See and hear galaxies evolving in new simulations with this video. The simulations help astronomers trace growth from the early universe to today.
April 16, 2026
Huge ancient sandstorm on Mars revealed in rippled sediments
Dust storms are common on Mars. But ripples in blocks of bedrock have revealed evidence of a more intense sandstorm on Mars about 3.5 billion years ago.
April 15, 2026
Comet R3 PanSTARRS is brightening in the morning sky
Comet R3 PanSTARRS is now visible in the morning sky for those with binoculars or a telescope. Will it get brighter? See pics here.
April 14, 2026
The night sky in the time of the dinosaurs
The night sky in the time of the dinosaurs would have looked much different than today’s. Some famous stars had not yet been born. Read more.
April 14, 2026
Universe’s expansion rate: ‘Something doesn’t add up’
We think we understand the local universe's expansion rate. But measurements confirm a mismatch that could point to a need for new physics.
April 12, 2026
Asteroid Apophis to sweep close 3 years from tomorrow
Three years from now, on April 13, 2029, the asteroid Apophis will zoom safely past the Earth. This much-anticipated event is a "must-see" for all.
April 12, 2026
Why do Jupiter’s large moons outnumber Saturn’s?
Jupiter's large moons - Ganymede, Callisto, Io and Europa - number four. But Saturn has just one large moon, Titan. Why? It may be the planets' magnetic fields.
April 12, 2026
Supermassive black holes could merge in 100 years
For the first time, astronomers have direct evidence of a close pair of supermassive black holes in a galaxy. These black holes could merge in 100 years.
April 10, 2026
What is the Earth’s most distant spacecraft?
The most distant spacecraft from Earth is Voyager 1. Launched in 1977, Voyager 1 is a few billion miles farther from Earth than its sibling, Voyager 2.
April 9, 2026
