Edwin Hubble and the expanding universe

Edwin Hubble as a young man. It was then that he said, “If only I could…

The universe is expanding faster than theory predicts

The Webb space telescope’s deep field image shows a universe filled with sparkling galaxies. In modern…

Are 2 huge blobs inside Earth due to an ancient impact?

View larger. | Artist’s concept of an ancient collision between a planet-sized body and a planet…

Best places to find ice on Mars revealed in new NASA map

View larger. | This is part of the new map from the Mars Subsurface Water Ice…

Uranus discovered by accident in 1781 by William Herschel

Pale blue Uranus as seen by Voyager 2 in 1986. Voyager 2 is the only spacecraft…

Jupiter’s moon Ganymede is coated in salts and organics

View larger. | NASA’s Juno spacecraft captured this view of Ganymede on June 7, 2021. New…

Seasons of Uranus, a sideways world

NASA released this new Uranus image on April 6, 2023. It’s from the mighty Webb space…

Record-breaking black hole found in the early universe

Astronomers found the most distant black hole ever detected in X-rays (in a galaxy dubbed UHZ1)…

And then there were 3!

The first images from the Lucy spacecraft of the asteroid Dinkinesh showed 2 asteroids, but newer…

Halley’s Comet is Edmond Halley’s namesake. Happy birthday, Edmond!

Portrait of Edmond Halley circa 1687 by Thomas Murray. Halley is famous for discovering that comets…