TRAPPIST-1e is one of seven known Earth-sized planets orbiting TRAPPIST-1, an ultracool red dwarf about 40 light-years away in the constellation Aquarius. The system was found by a team led by Michael Gillon using the TRAPPIST telescopes in Chile and Morocco, with follow-up from other observatories, including NASA's Spitzer Space Telescope. Planet e is slightly smaller than Earth, orbits in a little over six days, and lies within the star's habitable zone, where liquid water could exist on a surface under the right conditions. It has become one of the best studied rocky exoplanets, and observations with the James Webb Space Telescope are testing whether it has an atmosphere.
Before and after
- 8 January 2017January 2017 Jerusalem vehicular attack
- 12 January 2017Despacito
- 20 January 2017First inauguration of Donald Trump
- 27 January 2017Executive Order 13769
- 22 February 2017Discovery of TRAPPIST-1e
- 22 February 2017Discovery of TRAPPIST-1 f
- 22 February 2017Discovery of TRAPPIST-1 g
- 26 February 2017I Can't Go On
- from March 2017 to August 20172017 Venezuelan protests
More in Universe & space
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- 4 March 1979Discovery of Metis
- 5 March 1979Discovery of Thebe
- 8 July 1979Discovery of Adrastea
- 16 June 1989Discovery of Proteus
The era
This moment belongs to the Contemporary world (1945 CE to today), the world since 1945. You can also browse everything in the 21st century.