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The Downlink

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More Issues

Feature: Exoplanets

2 March 2020

Your Guide to Exoplanets

Learn why and how we study exoplanets, and how you can get involved.

2 March 2020

Our Exoplanets Research

Scientists are searching for 100 Earth-like planets around other stars, and you can help.

Swapna Krishna ● 12 March 2020

What is the Habitable Zone?

The habitable zone is the not-too-hot, not-too-cold region around a star where liquid water can exist.

Emily Lakdawalla ● 2 March 2020

The Different Kinds of Exoplanets
You Meet in the Milky Way

Lava worlds. Hot Jupiters. Earth 2.0 candidates. Here's a rundown of some notable exoplanets.

Emily Lakdawalla & Staff ● 2 March 2020

How to Search for Exoplanets

Some methods almost sound like science fiction: Using gravity as a magnifying glass, watching stars wobble at turtle-like speeds, and searching for tiny dips in starlight.

2 March 2020

Your guide to WFIRST

WFIRST, NASA's Wide Field Infrared Survey Telescope, is the next step in our hunt for Earth-sized exoplanets.

Blogs & Articles

What Will Be the Top Space Story in 2010?

Susan Lendroth • December 22, 2009

What do you think will be the top trend in space in 2010? In his Cosmic Log on MSNBC, Alan Boyle suggests that The Planetary Society's solar sailing project may be a contender.

LightSail Garners News Headlines

Susan Lendroth • November 13, 2009

The Planetary Society's new solar sail project -- LightSail -- has generated headlines and hundreds of news stories since it was announced on Monday.

LightSail Featured on NPR's Science Friday

Susan Lendroth • November 12, 2009

Our Executive Director Lou Friedman joins host Ira Flatow on NPR's Science Friday -- November 13 -- for a live chat about The Planetary Society's exciting new solar sail project.

A million dollars says The Planetary Society can make a solar sail fly

Emily Lakdawalla • November 09, 2009

The Planetary Society announced today that an anonymous donor has put up one million dollars to help us get a solar sail in flight.

Solar Sail Update: New Opportunities

Bruce Betts • April 01, 2009

At the beginning of this decade, we designed a mission to accomplish this goal. We launched Cosmos 1 in June 2005, but the Volna rocket that was to place the spacecraft in orbit failed, and we were never able to test our solar sail in flight. These days, The Planetary Society is working with colleagues at NASA and at the Russian Space Research Institute to put together a new solar sail mission.

Bill Nye and people
Let's Change the World

Become a member of The Planetary Society and together we will create the future of space exploration.

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Europa
The Planetary Fund

Help advance robotic and human space exploration, defend our planet, and search for life.

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