Astronomer Gianluca Masi and his Virtual Telescope Project will host a special livestream on Oct. 20 beginning at 1:30 p.m.

With power bills surging in many areas across the United States, more homeowners are turning to solar energy and battery ...

Astronomers say the water that fills Earth's oceans — and the stuff you use to brew your morning cup of coffee or tea — may be older than the sun itself.

The interstellar object 3I/ATLAS is allegedly sending signals in a Fibonacci code. Is it an alien message, and is NASA hiding the truth about this cosmic enigma?

It will be a while before you can see it for yourself, however. Halley’s comet was last visible from Earth in 1986, meaning ...