We’ve been searching for extraterrestrial intelligence for decades now—and it’s high time we found something. Yet, to our immense frustration, all searches thus far have come up decidedly empty. So, what gives? We’ve assembled a number of tentative theories for why ET is giving us the cold shoulder.
Not now, and possibly not ever.
The Kardashev Scale measures the technological capabilities of advanced alien civilizations that may exist in our universe. How do humans rank? (Spoiler: not very well)
The “Breakthrough Initiatives” seek to answer one of the most pressing questions of our day: are we alone in the universe? Breakthrough Listen will scan the skies for alien signals, while Breakthrough Starshot aims to develop interstellar craft to explore alien worlds. Here’s a look at this ambitious program of research.
Will we ever phone E.T.?
We may have to make life happen beyond our planet.
The search is on! (but please, don't bet on ET)
With the discovery of Proxima b, astronomers have finally found a potentially habitable planet around the nearest star to Earth. In honor of that finding, we’ve compiled a list of the most promising real estate in the galaxy—the many strange worlds that may now or someday host life as we know it.
They have the right terrain, and the right distance from their host star.
Scientists hope to probe the moon's global ocean for signs of life.
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