John Beattie - Is there anybody out there...? - 主播大秀 Sounds
John Beattie - Is there anybody out there...? - 主播大秀 Sounds
Is there anybody out there...?
Has the Kepler Space Telescope detected advanced alien megastructures in the Milky Way?
Has the Kepler Space Telescope detected advanced alien megastructures in the Milky Way?