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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
There’s less ice in moon’s shadows than 1st thought
Ice in moon’s shadows is scarce, NASA’s ShadowCam finds, with only small, scattered deposits instead of the abundant ice once expected.
April 8, 2026
Watch sungrazing Comet MAPS break up near the sun
Sungrazing comet C/2026 A1 (MAPS) apparently didn't survive its close encounter with the sun. Watch the apparent breakup in spacecraft images!
April 6, 2026
Walking robots on Mars could speed up life search
Researchers in Europe are testing a prototype for walking robots on Mars or the moon. Robots like this would be faster and more autonomous than current rovers.
April 6, 2026
11,000 new asteroids! Astronomers call it ‘tip of iceberg’
Rubin Observatory’s early data revealed more than 11,000 new asteroids in the asteroid belt, along with some 380 objects beyond Neptune.
April 5, 2026
5 insights on interstellar comet 3I/ATLAS from ESA’s Juice mission
Juice reveals Comet 3I/ATLAS is highly active, with vast gas and dust clouds. It behaves like solar system comets and offers clues to its interstellar origins.
April 5, 2026
