1st US satellite – Explorer 1 – launched 64 years ago this week

On January 31, 1958, the United States launched its 1st satellite, Explorer 1. The satellite led to the discovery of the Van Allen radiation belts.

See it! This weekend’s moon, Venus and Mars

See it! Check out the beautiful scene in the eastern predawn sky, as the moon, Mars and Venus met in the sky on January 29, 2022.

Caelum and Columba in January and February

The constellations of Caelum the Chisel and Columba the Dove cross high overhead for observers in the Southern Hemisphere on January and February evenings.

When Solar Orbiter passed through Comet Leonard’s tail

ESA's Solar Orbiter passed through the tail of Comet Leonard on its way to the sun, sampling particles and taking images in visible and ultraviolet light.

Moon, Mars and Venus, morning of January 29

See the moon with Mars and Venus on the morning of January 29, when the trio form a line near the southeastern horizon before sunrise.

SpaceX Falcon 9 rocket will crash into moon on March 4

Rocket debris of a SpaceX Falcon 9 upper stage will crash into the far side of the moon on March 4, 2022. Click here for links to a live feed.

Milky Way core revealed in new radio mosaic

A new radio mosaic of the Milky Way core - from the MeerKAT telescope in South Africa - has mind-blowing details never seen before.

ALMA radio telescope dishes reflected in rainwater

A glorious image of the ALMA radio telescope in northern Chile, taken after a rare rainstorm. The telescope never looked prettier!

Bird ranges shifting northward: Audubon study

A new study from the National Audubon Society uses 90 years of Christmas Bird Count data. It shows bird ranges shifting northward.

Hell Creek evidence pinpoints month of dinosaur extinction

Scientists have pinpointed the exact month of dinosaur extinction to be June, by looking at sediment layers in North Dakota and fossil water lilies.