Hubble Telescope investigates nearby exoplanet, finds it's Earth-size
The rocky exoplanet LTT 1445Ac, located about 22.5 light years away, has been observed transiting its star by the Hubble Space Telescope.
Exoplanet Survey Satellite Smithsonian Center Hubble Space Telescope Echelle Spectrograph Rocky Exoplanets Stable Spectroscopic Observations
Source: yahoo.com