The observable universe is a big place that has been around for more than 13 billion years. Up to two trillion galaxies made up of something like 20,000 billion billion stars surround our home galaxy. In the milky way alone scientists assume there are some 40 billion earth like planets in the habitable zone of their stars. When we look at these numbers it is hard to imagine that there is nobody else out there.
João Monteiro
2021-08-25 22:40:52 +0000 UTCYoung Joon
2020-09-19 06:00:24 +0000 UTCTim
2020-08-06 12:37:03 +0000 UTCPJ Amartey
2020-08-05 03:02:54 +0000 UTCMark Hollomon
2020-08-04 17:01:42 +0000 UTCMike Spalding
2020-08-03 16:33:07 +0000 UTCAlexander Lisovsky
2020-08-03 14:10:15 +0000 UTCElyssiel
2020-08-03 03:15:44 +0000 UTCAustin Robinson
2020-08-02 16:20:48 +0000 UTCSpiritunicorn
2020-08-02 13:11:38 +0000 UTC