Meet Proxima b, a newly discovered exoplanet just four light-years from Earth. Scientists say it could be rocky, watery, and habitable. Should we be optimistic about finding alien life there?
The ‘Second Earth’ orbiting our nearest star

Meet Proxima b, a newly discovered exoplanet just four light-years from Earth. Scientists say it could be rocky, watery, and habitable. Should we be optimistic about finding alien life there?