See the crescent moon shine with Mars at sunset on Sept. 24. The crescent moon shines close to Mars above the western horizon ...

Is there ever a time that the Moon does not set or rise, just like the Sun does from certain locations on Earth? Can it ...

Watch the crescent moon, Venus and the bright star Regulus align in a rare predawn close conjunction tomorrow.

The crescent moon will shine with Jupiter among the stars of Gemini early on Sept. 16. Turn your eyes to the east in the ...

Faint hydrogen signals from the cosmic Dark Ages may soon help determine the mass of dark matter particles. Simulations suggest future Moon-based observatories could distinguish between warm and cold ...

NASA unveiled 10 recruits who will undergo training to become eligible for future missions that could carry humans deeper into the cosmos than ever.

These breathtaking photographs are the winning entries of the 2025 ZWO Astronomy Photographer of the Year Awards.

Earth is the only planet in our solar system with a single moon, making it a rare phenomenon for a planet of its kind.

So do China and Russia. Here’s what you need to know about America’s new lunar-energy race ...

The umbra is the dark, inner shadow of Earth. Shaped like a cone, it stretches deep into space. Its circular cross section ...

Columnist John Breunig gets starry-eyed taking a tour of the new Planetarium & Astronomy Center at the Stamford Museum & ...