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ESO News
22 February 2017

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. According to the paper appearing today in the journal Nature, three of the planets lie in the habitable zone and could harbour oceans of water on their surfaces, increasing the possibility that the star system could play host to life. This system has both the largest number of Earth-sized planets yet found and the largest number of worlds that could support liquid water on their surfaces.

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22 February 2017

  ESO Announcements

ESOcast 96: Ultracool Dwarf and the Seven Planets

22 February 2017: A total of seven Earth-like, potentially habitable worlds have been discovered orbiting a nearby star known as TRAPPIST-1. Just 40 light-years away, the star’s diminutive size and dim light ...

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2017 Insight Astronomy Photographer of the Year Competition Opens — ESO in partnership with the Royal Observatory Greenwich

22 February 2017: The Royal Observatory Greenwich, in association with Insight Investment and BBC Sky at Night Magazine, has announced the key dates for the Insight Astronomy Photographer of the Year 2017 competition ...

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ESO Announces Support of Summer AstroCamp — Win a free astronomy trip to Portugal

20 February 2017: ESO is proud to announce its new collaboration with the Centre for Astrophysics of the University of Porto (CAUP) to support AstroCamp 2017, an astronomy-focused summer academic program for secondary ...

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ESO Awards Contract to Polish the ELT Tertiary Mirror

15 February 2017: ESO’s Extremely Large Telescope (ELT), scheduled to see first light in 2024, is at the cutting edge of telescope technology. Its optical system will consist of no fewer than ...

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