关于这张图
This artist's illustration depicts the exoplanet LHS 3844b, which is 1.3 times the mass of Earth and orbits an M dwarf star. The planet has no apparent atmosphere, and its surface may be covered mostly in dark lava rock, according to observations by NASA's Spitzer Space Telescope. Discovered in 2018 by NASA's Transiting Exoplanet Satellite Survey (TESS), planet LHS 3844b is located 48.6 light-years from Earth and makes one full revolution around its parent star in just 11 hours. Because it has such a tight orbit, LHS 3844b is most likely tidally locked, meaning one side of the planet always f…