Hubble Deep Field image showing myriad galaxies dating back to the beginning of time. Image by Robert Williams and the Hubble Deep Field Team (STScI) and NASA.
A new study from the University of Oxford looks at the possibility of human colonization throughout the universe.
Scientists as eminent as Stephen Hawking and Carl Sagan have long believed that humans will one day colonize the universe. But how easy would it be, why would we want to, and why haven’t we seen any evidence of other life forms making their own bids for universal domination?