Follow Slashdot blog updates by subscribing to our blog RSS feed


Forgot your password?
Slashdot Deals: Cyber Monday Sale Extended! Courses ranging from coding to project management - all eLearning deals 20% off with coupon code "CYBERMONDAY20". ×

Submission + - Astronomy Without A Telescope (

Phoghat writes: "In what is starting to become a familiar theme, researchers have speculated on what types of observational data from distant planetary systems might indicate the presence of an alien civilization, in this case asteroid mining
it’s thought that indicators of the presence of an alien civilization might include:
Atmospheric pollutants, like chlorofluorocarbons – which, unlike methane or molecular oxygen, are clearly manufactured rather than just biogenically produced
Propulsion signatures – remember how the Vulcans detected humanity in Star Trek: First Contact
  Stellar engineering – where a star’s lifetime is artificially extended to maintain the habitable zone of its planetary system"

This discussion was created for logged-in users only, but now has been archived. No new comments can be posted.

Astronomy Without A Telescope

Comments Filter:

Bell Labs Unix -- Reach out and grep someone.