For generations, the search for life beyond Earth has focused on avoiding one of science’s biggest mistakes: claiming a ...

Between the mid-1970s and early 1980s, two physicists, Michael Hart and Frank Tipler, published a controversial series of papers arguing that extraterrestrial intelligence didn't exist. As they argued ...

We frequently question whether we are alone in the universe. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. This article was originally ...

From the physical world to the biological universe: Democritus to Lowell -- Plurality of worlds and the decline of anthropocentrism -- Life in the solar system: the limits of observation -- Planetary ...

Steven Spielberg's claims that aliens have already visited Earth have drawn a mixed but pointed scientists' reaction this ...