Water is essential for life on Earth. So, the liquid must be a requirement for life in other worlds. For decades, scientists' definition of habitability on other planets has rested on this assumption.

You should, in theory, be able to see the planet parade from your backyard in the night sky. However, city folk will have a ...

Venus and Jupiter will meet in a conjunction in the early morning hours of Tuesday, Aug. 12. Here's everything you need to ...

The Perseids are known for being especially swift and bright, and in a good year viewers can expect to spot between 50 and ...

During the early days of our solar system, giant impacts were common occurrences. Earth likely experienced such an impact ...

The dust causing the Perseids comes from a comet known as Swift-Tuttle, which last passed near Earth in 1992 and orbits the ...

Venus and Jupiter, the brightest planets in our solar system, are about to make their closest approach during their August ...

A final "gee-whiz" fact you can reveal to your friends is that what you are seeing in Monday's sky is an illusion of ...

The Twilight Zone was famous for serving up twist endings, and these were the ones that surprised audiences the most.

It’s time once again for the Perseid meteor shower! Meteors from this annual celestial display are remnants from the ancient comet Swift-Tuttle, which ...

Alongside the planets will be the August 2025 full moon, called the sturgeon moon, which is expected to reach peak illumination on Saturday, Aug. 9, at 3:55 a.m. Eastern. To view the planets, it's ...