ESOcast 96: Ultracool Dwarf and the Seven Planets

ESOcast 96: Ultracool Dwarf and the Seven Planets
Astronomers have found a system of seven Earth-sized planets just 40 light-years away. Using ground and space telescopes, including ESO’s Very Large Telescope, the planets were all detected as they passed in front of their parent star, the ultracool dwarf star known as TRAPPIST-1.

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