Could aliens be able to detect intelligent life on earth?

As a proof-of-concept for this telescope, called the ExoLife Finder, or ELF, Berdyugina and Kuhn simulated how nearby aliens using the telescope would see Earth. From 25 trillion miles away, E.T. could not only map Earth's continents, but they'd also be able to see signs of intelligent life. read more

It is moving at 38,000 mph (61,000 km/h). It's now a little over 17 light hours from Earth. At its current speed, it will take it 17,565 to travel just 1 light year. So unless the aliens who detect intelligent life signs on Earth are vastly more advanced than we are, don't get your hopes up for an immediate visit. read more

Aliens wouldn't be able to detect our radio presence, much less our golden records, unless they're within 590 trillion miles of Earth. If intelligent life is any farther away than that, our earliest radio signals simply haven't reached them yet. read more

The first detection of intelligent extraterrestrial life will likely come within the next quarter-century, a prominent alien hunter predicts. The first detection of intelligent extraterrestrial life will likely come within the next quarter-century, a prominent alien hunter predicts. read more