TRAPPIST-1 Planets Tidally Locked to Star, Have Short Orbits | Video
Wednesday, February 22, 2017 - 13:32
in Astronomy & Space
Most, if not all, of the 7 Earth-sized planets in the ultra cool dwarf star system may only face one way towards their sun, similar to Earth’s moon. Their orbits range from 1.94 days to about 20.