Techniques to prove or disprove existence of other planets
Monday, March 9, 2015 - 08:15
in Astronomy & Space
Astronomers long have sought to find planets that can sustain life as humans know it. Four years ago, they thought they had one, possibly even two, pointing to signs that suggested that at least one rocky planet located in the "habitable zone" was revolving around Gliese 581, a faint dwarf star located 20 light-years from Earth.