Saturn’s largest moon may actually be 2 moons in 1 — and helped birth the planet’s iconic rings
Saturn’s largest moon, Titan, may be made of two different moons that smashed together hundreds of millions of…
The Optical Engineering Required to Photograph an Earth Twin
More and more papers are coming out about the upcoming Habitable Worlds Observatory (HWO). As the telescope moves…
Ask Ethan: Will anything persist when the Universe dies?
If we’re willing to think about the future, the farther ahead we extrapolate, the farther along the inevitable…
Radio Hunt Across 124 Light-Years Ends With a Striking Discovery
A coordinated search using two major radio observatories has found no evidence of artificial radio transmissions from the…
Earth from Space: Ouarzazate, Morocco
The Copernicus Sentinel-2 mission takes us over south-central Morocco, near the city of Ouarzazate. Zoom in or click…
Searching Out Missing Links in Galaxy Evolution
How do galaxies evolve? When did they start forming? Those are questions astronomers and cosmologists are working to…
After fueling test, optimism grows for March launch of Artemis II to the Moon
A second fueling test on NASA’s Space Launch System rocket ended Thursday night, giving senior managers enough confidence…
The stellar lifecycle in a nearby spiral
Two powerful instruments of the NASA/ESA/CSA James Webb Space Telescope joined forces to create this scenic galaxy view…
Supermassive serial killers: Astronomers discover how black holes ‘kill off’ neighboring galaxies
Scientists have long suspected that active supermassive black holes can kill their own host galaxies, but new research…
NASA X-ray spacecraft stares into the ‘eye of the storm’ swirling around supermassive black holes
Scientists have dived deeper into the “eye of the storm” swirling around supermassive black holes than ever before.…
Gaia Detected an Entire Swarm of Black Holes Traveling Through The Milky Way
A fluffy cluster of stars spilling across the sky may have a secret hidden in its heart: a…
Blazing ‘ring of fire’ eclipse seen from space photo of the day for Feb. 20, 2026
Annular solar eclipse captured on Feb. 17, 2026 by ESA’s Proba-2 satellite. (Image credit: ESA/Royal Observatory of Belgium)…