Astronomy and Astrophysics

Scientists discover seven Earth-sized planets orbiting nearby star

Scientists discover seven Earth-sized planets orbiting nearby star

Raising hope of finding a "second Earth" out there in the cosmos, scientists announced Wednesday that they've found three planets circling a relatively nearby star that could be hospitable enough to support life.

They are among seven planets discovered orbiting the star known as TRAPPIST-1, about 39 light years from Earth in the Milky Way.

The scientists — some from the Space Telescope Science Institute in Baltimore — plan to probe the planets in coming years with advanced telescopes, including the Hubble Space Telescope and its planned successor, the James Webb Space Telescope.

The findings published Wednesday in the journal Nature increase scientific...

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