Will we digitize human bodies for healthcare?

What would it be like if we could digitize human bodies? We could recognize heart attacks as they happen and deliver tailored doses of medicine to the sick.

See the best deep-sky photos of November 2025 here

Enjoy this gallery of deep-sky photos for November 2025 from our EarthSky community. If you have a great photo to share, send it in, too. We love to see them!

What time is it on Mars? The 1st precise answer

What time is it on Mars? The time difference between Mars and Earth is a complicated puzzle. But it's necessary to solve for future explorations.

Audubon Christmas Bird Count signup has begun

The Audubon Christmas Bird Count, held each winter, is one of the longest-running community science projects. You can help collect important data about birds.

December birthstone: turquoise, zircon or tanzanite

The December birthstone is 1 of 3 gemstones, the exquisite blue-green turquoise, dazzling zircon, or the magnificent blue-violet tanzanite. Your choice!

Andromeda Galaxy: Find it by star-hopping from Pegasus

The 4 stars of the Great Square of Pegasus are easy to find. Ready? Let's star-hop! Use these guide stars to help find the Andromeda galaxy.

Proximity to a supermassive black hole doesn’t spell doom

Scientists found that stars in the "S-cluster," a group of young, high-velocity stars orbiting our galaxy's central supermassive black hole, have stable orbits.

Mercury’s sodium tail is now appearing in special filters

On December 3, 2025, Steven Bellavia imaged Mercury's sodium tail flowing away from the sun. See the image here and read more about Mercury's tail.

Did we just see dark matter? Scientists express skepticism

A bold new study claims to have made the 1st ever direct detection of dark matter, but scientists are expressing skepticism.

December full moon is the Cold Moon and a supermoon

The 2025 December full moon will occur on December 4. It's also a supermoon, the last supermoon of 2025. It will look very bright. Don't miss it!