Is intelligent alien life really out there? With powerful telescopes identifying more potentially habitable planets each year ...

Dr. Tyson is an astrophysicist and the author of “Take Me to Your Leader: Perspectives on Your First Alien Encounter.” See more of our coverage in your search results.Encuentra más de nuestra ...

When the Trump administration registered the domains Aliens.gov and Alien.gov in March, UFO conspiracy theorists wondered whether they might finally get answers they’d long awaited. But coming on the ...

What would aliens actually look like? While simple life forms like bacteria may be common in the universe, complex intelligent life is likely rare. Movies often depict aliens as human-like, which is ...

Astronomers may have been listening for alien civilizations in only a small slice of the radio spectrum while overlooking a largely unexplored range of higher frequencies. Using archived data from the ...

Assuming intelligent aliens know how to harvest energy from stars, would humanity be able to spot these high-level structures? Reading time 3 minutes Assuming aliens do physics like us but are ...

If intelligent aliens are out there, why aren’t we hearing from them? Are they silently observing us like zoo animals, or staying quiet out of fear that they’d catch the attention of a bloodthirsty ...