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  • “Exploration is in our nature.” - Carl Sagan
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Stories, updates, insights, and original analysis from The Planetary Society. 

The Green Bank Telescope

How do humans try to communicate with aliens?

SETI is the search for extraterrestrial intelligence, using various techniques to look for signals from advanced alien civilizations. METI (messaging extraterrestrial intelligence) is when we send out our own signals for aliens to find.

Jupiter olive

Cosmic cocktail hour

Jupiter looks fit for a martini, and Carl Sagan pairs well with a cosmopolitan. Find out why, and learn about the latest in space science and exploration.

Esa rover sample collection

With an eye to the future

Mars Sample Return’s future depends on what we do now. NIAC’s projects are very future-forward. And in many ways, the future is already here.

Earth september equinox

Equinox and equilux

Celebrate today’s equinox, but be sure to check when your location’s equilux takes place. And there’s lots to celebrate about this year’s Day of Action.

Apollo 14 moon rock

Lost and found

Some things are lost — Moon rocks, Io’s water, even (briefly) the Sun’s light — but what we find in space is so much greater.

Bill Nye with eclipse glasses

Are your solar eclipse glasses safe?

A guide to how to make sure your solar eclipse glasses are safe and certified, plus tips on what to do — and what not to do — if you want to experience an eclipse without glasses.

Jwst ring nebula

See for yourself

See the month’s coolest space pictures, see planets in the night sky, and create the future in space that you want to see.

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