How to Detect Super-Civilizations Born in Foreign Galaxies

There may be evidence of super-advanced civilizations in other galaxies who have learned to control the entire energy output of their parent star. And we could start looking for them. 

What's the Latest Development?


Our current search for extraterrestrial life focuses on combing the skies for radio signals emitted by a foreign civilization within our Milky Way galaxy, but caught as we are in a tight thicket of stars, sifting out those signals is like looking for a needle in a haystack. So perhaps we should turn our gaze to other galaxies and search for evidence of super-civilizations, detectable by such an advanced technological achievement that they came to control the entire energy output of their parent star. Such a technology was theorized in the 1960s by physicist Freeman Dyson, which would be constructed by dismantling a planet with the mass of Jupiter.

What's the Big Idea?

The mass of the deconstructed planet, according to Dyson's design, would be used to build a shell around the star to capture all its energy output. "These [shells] would be detected as anomalous dark voids in a galaxy's disk. When these voids were observed in infrared light they would glow brightly with the heat radiation from the surfaces of Dyson spheres. This would show that they are not that simply voids where solar-type stars are conspicuously missing." Given that the Universe has allowed super-civilizations to develop for 12 billion years, were we not to find evidence of such technology, we could reasonably put an upper limit on what can be achieved by life. 

Photo credit: Shutterstock.com

 

Archaeologists unearth dozens of mummified cats in Egypt

Dozens of mummified cats were dug up this week. This isn't as shocking as you might think.

KHALED DESOUKI/AFP/Getty Images
Culture & Religion
  • Archaeologists in Egypt have found dozens of mummified cats in the tomb of a royal offical.
  • The cats will join the ranks of hundreds of thousands of previously discovered ancient kitties.
  • While the cats are nothing special, the tomb also held well preserved beetles.
Keep reading Show less

Men obsessed with building muscle mass have higher mental health risks

They're at a higher risk for depression, weekend binge drinking, and unnecessary dieting.

Palestinian participants flex their muscles during a bodybuilding competition in Gaza city on October 28, 2016. / AFP / MOHAMMED ABED (Photo credit should read MOHAMMED ABED/AFP/Getty Images)
Mind & Brain
  • Body dysmorphia is not limited to women, a new study from Norway and Cambridge shows.
  • Young men that focus on building muscle are at risk for a host of mental and physical health problems.
  • Selfie culture is not helping the growing number of teens that are anxious and depressed.
Keep reading Show less

A.I. turns 57 million crop fields into stunning abstract art

Detailed (and beautiful) information on 57 million crop fields across the U.S. and Europe are now available online.

Image: OneSoil
Strange Maps
  • Using satellite images and artificial intelligence, OneSoil wants to make 'precision farming' available to the world.
  • The start-up from Belarus has already processed the U.S. and Europe, and aims for global coverage by 2020.
  • The map is practical, and more — browse 'Random Beautiful Fields' at the touch of a button.
Keep reading Show less