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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

Is the Moon a Stepping Stone or a Cornerstone for Mars?

Casey Dreier • January 26, 2020 • 8

New legislation proposed in the House of Representatives would radically shift NASA's human spaceflight efforts away from the Moon and back to Mars.

The Downlink: New Earth-size Exoplanet Found, Meteor Shower Seen from ISS

Jason Davis • January 10, 2020 • 1

Planetary exploration news for busy people

The Downlink: OSIRIS-REx Sample Site Picked, Easy-Access Water Ice on Mars

Jason Davis • December 13, 2019 • 1

Planetary exploration news for busy people

The Downlink: Europe Funds Planetary Defense Mission and Mars Sample Return

Jason Davis • November 29, 2019

Planetary exploration news for busy people

The Downlink: Shields Up for James Webb, Breakthrough Eyes New SETI Targets

Jason Davis • October 25, 2019 • 3

Planetary exploration news for busy people

The Downlink: A Historic All-Woman Spacewalk, Hubble Spies Interstellar Comet

Jason Davis • October 18, 2019 • 1

Planetary exploration news for busy people

The Downlink: NASA Works to Save Mars Experiment, Saturn Gets 20 New Moons

Jason Davis • October 11, 2019 • 3

Planetary exploration news for busy people

The Downlink: Station Crew Home, Hayabusa2 Deploys Rover

Jason Davis • October 04, 2019 • 2

Planetary exploration news for busy people

Orion Completes Critical In-Flight Abort Test

Jason Davis • July 02, 2019 • 2

The test showed Orion can blast itself away from the Space Launch System if the big rocket fails while attempting to fly to orbit.

A Crash Program or Modest Proposal?

Casey Dreier • May 13, 2019 • 5

The White House released a long-awaited supplemental budget request for NASA today. It proposes an additional $1.6 billion for an accelerated human spaceflight effort to land on the Moon in 2024. This boosts the President's budget request for NASA to $22.6 billion in fiscal year 2020, which is approximately $1.1 billion or 5% more than the amount provided by Congress last year.

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