In May 2018, a radar facility in Tromsø, Norway, trained its antennas on GJ237b, a potentially habitable exoplanet located 12 light years from Earth. Over the course of three days, the radar broadcast ...

Human contact with alien civilizations may be more likely than we think. A recent NASA study estimated that there should be at least four habitable planets (and probably more) within about 32 light ...

Projects like SETI and Breakthrough Listen are dedicated to spotting the signals extraterrestrials may be sending out into the universe. But there’s an additional side to the story — if E.T. did ...

Eric Mack has been a CNET contributor since 2011. Eric and his family live 100% energy and water independent on his off-grid compound in the New Mexico desert. Eric uses his passion for writing about ...