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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

Dawn Journal: Final Transmission

Marc Rayman • December 21, 2018 • 10

After more than 11 years in deep space, after unveiling the two largest uncharted worlds in the inner solar system, after overcoming myriad daunting obstacles, Dawn's interplanetary adventure has come to an end.

Dawn Journal: 11 Years in Space

Marc Rayman • October 19, 2018 • 8

Dawn is celebrating its 11th anniversary of spaceflight. This is the last dawnniversary the spacecraft will see.

Dawn Journal: A Bit of Perspective

Marc Rayman • September 05, 2018 • 11

Like its human colleagues, Dawn started out on Earth, but now its permanent residence in the solar system, Ceres, is far, far away. Let's bring this cosmic landscape into perspective.

Dawn Journal: Denouement

Marc Rayman • September 04, 2018 • 7

A fantastic story of adventure, exploration and discovery is reaching its denouement. In the final phase of its long and productive deep-space mission, Dawn is operating flawlessly in orbit around dwarf planet Ceres.

Dawn Journal: Going Out on a High...Or Maybe a Low

Marc Rayman • July 18, 2018 • 7

Rapidly nearing the end of a unique decade-long interplanetary expedition, Dawn is taking phenomenal pictures of dwarf planet Ceres as it swoops closer to the ground than ever before.

Dawn Journal: Spiralling Down

Marc Rayman • June 15, 2018 • 5

Propelled by the perfect combination of xenon ions, hydrazine rocket propellant and adrenaline, Dawn is on the verge of its most ambitious exploits yet.

Dawn Journal: Getting Elliptical

Marc Rayman • May 25, 2018 • 2

For the first time in almost a year, the Dawn mission control room at JPL is aglow with blue.

Dawn Journal: The Final Countdown

Marc Rayman • April 02, 2018 • 1

The Dawn mission has only one revolution to go before the spacecraft begins the final campaign of its long and rewarding deep-space adventure.

Dawn Journal: 4 Billion Miles

Marc Rayman • January 17, 2018 • 3

Permanently in residence at dwarf planet Ceres, Dawn is now preparing to add some finishing touches to its 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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