Launches: Surprise rollout for Artemis 1 today

On today's Launches blog ... NASA will roll out the SLS for the Artemis 1 moonshot early, starting at 9 p.m. ET on Tuesday, August 16.

Freya the walrus killed, social media erupts

Freya, a young female walrus, had been lounging in the sun in an Oslo, Norway fjord for weeks. But, on August 14, Norway's fisheries directorate killed her.

Don Machholz, 1952-2022

We are heartbroken to announce the passing of Don Machholz, discoverer of 12 comets. He was also a writer for EarthSky ... and our friend.

August birthstone: peridot or sardonyx

The August birthstone can be green, crystalline peridot or colorful, banded sardonyx. Both have long histories. Take your pick, August babies!

Robots to robot: ‘Happy birthday, Curiosity!’

Robots to robot: Happy birthday! Today over 100,000 robotic lawn mowers will "sing" Happy Birthday to the Curiosity rover on Mars. You can participate!

Mars Curiosity rover’s ‘7 minutes of terror’

To celebrate the 10-year anniversary of Curiosity rover's arrival on Mars, here’s a video on the final 7 minutes of its chilling descent on August 5-6, 2012.

Shrinking Lake Mead reveals bodies and boats

Lake Mead water levels continue to drop precipitously. People are finding things hidden underwater for decades, including human bodies.

Learn to shoot photos of meteors

Want to try to capture a meteor with your camera? The first step is planning. The next step is to gather your equipment. Then on to the capture process itself.

Launches and spaceflight updates: Week of July 25, 2022

China launched an unknown payload on Friday (July 29, 2022). An uncontrolled re-entry was planned, for the 2nd time this month.

Kitt Peak update after June wildfire

A wildfire reached Kitt Peak on July 17, 2022. Kitt Peak National Observatory is now working toward restoring the site so operations can continue.