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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

HiRISE image coverage of the Curiosity field site on Mars, Version 2.0

Emily Lakdawalla • December 30, 2014 • 1

There have been tons and tons of HiRISE images of the Curiosity landing region, and it has taken quite a lot of work for me to find, locate, and catalogue them. This post is a summary of what I've found; after four revisions and updates, it's now version 2.0 of the list.

New Views of Ancient Martian Landscapes

Bill Dunford • December 08, 2014 • 5

The Mars Reconnaissance Orbiter just keeps delivering remarkable scenes from the Red Planet.

Seven Mars spacecraft attempted observations of comet Siding Spring. How did they go?

Emily Lakdawalla • November 03, 2014 • 6

It's been two weeks since comet Siding Spring passed close by Mars, and six of the seven Mars spacecraft have now checked in with quick looks at their images of the encounter. I round up all the results.

Status update: All Mars missions fine after Siding Spring flyby

Emily Lakdawalla • October 20, 2014 • 2

All seven Mars spacecraft are doing perfectly fine after comet Siding Spring's close encounter with Mars.

SHARAD: Delving Deep at Mars

Bill Dunford • September 22, 2014

Some of Mars' most important secrets are hiding beneath the surface.

So Close and Yet So Far: Why isn't Siding Spring going to sandblast Mars?

Tony Farnham • September 09, 2014 • 5

Comet Siding Spring is going to make a very close approach to Mars in October. Any comet dust that reaches Mars has the potential to inflict significant damage on the spacecraft orbiting the planet. As it turns out, however, Mars and its orbiters are likely to see very few, if any, impacts. Why?

Curiosity Rover Science Plan Slammed by NASA Review Panel

Casey Dreier • September 03, 2014 • 19

Senior review recommends continuing all major planetary exploration missions, but not without some changes.

Mars orbiters plan for their October encounter with comet Siding Spring

Emily Lakdawalla • August 13, 2014 • 2

Now that we have reasonable confidence that our Mars orbiters will be safe from the close passage of comet Siding Spring, we are free to be excited about the opportunity that the encounter represents. At a community workshop on August 11, representatives from Mars missions shared their plans for great comet science.

One Day on Mars

Bill Dunford • July 21, 2014 • 3

A single day's observations take us from orbital overviews all the way down to ground truth.

A Checkup on Future Mars Missions

Van Kane • June 09, 2014 • 3

NASA’s Mars Exploration Analysis Group (MEPAG) recently reviewed plans by Europe, the Japanese, and NASA for future Mars exploration. The prognosis is for another exciting decade of Mars exploration.

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