NASA makes major discovery of seven Earth-sized planets

Science News

Big cheers for NASA!

Yesterday, they announced a major discovery (not aliens, sorry): a system of seven Earth-size planets, all which orbit a single star. Three of the planets are believed to be located in a habitable zone, and all seven planets have the potential of containing liquid water.

These planets – known as exoplanets, because they’re outside our solar system – are about 40 light-years from Earth, and reside in an exoplanet system that scientists are calling TRAPPIST-1.

The discovery was made via data from NASA’s Spitzer Space Telescope.

Check out this cool 360-degree video of one of the planets, known as TRAPPIST-1d:

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