Scientists find "strongest evidence yet" of life on distant planet

A British-U.S. team of researchers detected signs of two chemicals in the planet's atmosphere long considered to be "biosignatures" indicating extraterrestrial life.

• Apr 17, 2025

Here's how and when you can see a very rare planetary parade in Philly

Just after sunset, six of the seven planets will be visible to the Philadelphia area this week. It won't be visible again until 2040.

• Feb 26, 2025

NASA telescope reveals 7 new "scorching" planets orbiting distant star

NASA described the planets as "scorching" and "bathed" in heat emitted by a distant host star.

• Nov 3, 2023

A star is seen swallowing a planet "in one gulp" for the first time ever

It's a gloomy preview of what will happen to Earth when our sun morphs into a red giant and gobbles the four inner planets.

• May 4, 2023

5 planets will align across the sky on Tuesday night. Here's how to see them

Jupiter, Mercury, Venus, Uranus and Mars will align on Tuesday night.

• Mar 28, 2023

NASA has discovered an Earth-sized planet

A habitable zone is an area just the right distance from a star so water can exist on a planet's surface and the conditions are neither too hot nor too cold for life.

• Jan 11, 2023

Yes, Mercury is in retrograde — but can it really affect your life?

Mercury retrograde happens several times a year.

• Dec 28, 2022