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The Listeners

In Life by Brian Koberlein3 Comments

The Breakthrough Listen project, funded by Russian billionaire Yuri Milner, will use radio and optical observatories to listen for messages from alien civilizations.

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Passing the Bar

In Life by Brian Koberlein5 Comments

If habitable planets are common, why aren’t alien civilizations? This “Fermi paradox” might be solved by an idea known as the great filter.

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Forever Alone

In Life by Brian Koberlein7 Comments

It’s estimated that there are between 8 and 20 billion potentially habitable Earth-like worlds within our galaxy alone. Those are just the ones that orbit Sun-like stars. If you add in stars like red dwarfs, the number of potentially habitable planets rises to over 40 billion.