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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

A week in the solar system

Jason Davis • November 10, 2016 • 1

A roundup of pretty pictures and news from our robotic ambassadors around the solar system, from November 4 through 8.

Oppositions, conjunctions, seasons, and ring plane crossings of the giant planets

Emily Lakdawalla • July 07, 2016 • 4

When are the solstices and equinoxes on the giant planets, and when are they best positioned for view from Earth? I ask these questions a lot as I write about Earth photos of giant planets, and I finally decided to gather the answers to those questions in a single post.

Three bright planets: Portraits from the Pyrenees

Emily Lakdawalla • May 26, 2016 • 1

It's a great time to go outdoors and look at planets. I have three glorious planetary portraits to share today, sent to me by amateur astronomer Jean-Luc Dauvergne.

New work with 35-year-old data: Voyagers at Ganymede and Saturn

Emily Lakdawalla • May 25, 2016 • 8

The Voyager data set is a gift to Earth that keeps on giving. This week, I've seen three great new images processed from this old data set.

Bill Nye and people
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