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Stories, updates, insights, and original analysis from The Planetary Society.

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.

Moonshadow, Moonshadow

The Moon casts shadows on itself and on Earth, environmental concerns overshadow a test launch’s success, and exoplanets are awesome (beyond a shadow of a doubt).

Launching and descending

Artemis I is on its way to the Moon, Planetary Academy is here to inspire your kids, and LightSail 2 has come down.

Two pale blue dots

Reflecting on Carl Sagan’s influence on this pale blue dot we call Earth.

Patience for Uranus

The road back to Uranus is paved with a complicated mix of science and politics.

Space rocks!

Rock stars love space, and who can blame them! Take a look at awesome images, exciting science, and the connection between music and exploration.

Rather remarkable robots

The robotic explorers of our Cosmos are truly impressive, as showcased by several spacecraft this week.

Space brings out the best in us

Space exploration is at its core an optimistic, peaceful and cooperative endeavor. This week we look at some reminders of that spirit of exploration.

Proximity and distance

Looking at planets and moons from near and far, and figuring out how to get all the way out there.

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