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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

Solar conjunction: Holidays for Mars missions, and an Opportunity update

Emily Lakdawalla • November 21, 2008

The period of Mars solar conjunction has just begun, which means that a host of scientists and engineers whose day jobs entail interaction with the five active Mars spacecraft are getting a five-week break from the daily grind of operations.

Opportunity's got a long road ahead

Emily Lakdawalla • September 19, 2008

Mars Exploration Rover principal investigator Steve Squyres announced on National Public Radio's Science Friday show the next goal for Opportunity, and it's a long, long, long way away: a huge crater about 12 kilometers southeast of its current location, which the team is referring to internally as "Endeavour."

More things to see in the amazing HiRISE image of Phoenix' descent

Emily Lakdawalla • July 10, 2008

I have posted several times about the amazing photo captured by HiRISE of Phoenix under its parachute as it descended. There have been two common questions I've received about the photo: was there any color data taken, and what more can I tell you about how hard it was to take the photo? I've got answers to both questions for you today.

Some beautiful video from the Spirit and Opportunity landing sites

Emily Lakdawalla • May 12, 2008

A majority of the people who work in planetary geology are usually associated with one or maybe two missions, doing all their research on the results from one instrument on one mission. But there are a few people whose expertise cuts across many space missions, and an even smaller number of people who seem to work on almost everything. Randy Kirk is one of those people.

What's up in the solar system for the week of May 12

Emily Lakdawalla • May 12, 2008

It's time to check in on what's going on with our trusty robots around the solar system.

White Rock through the Ages: Mars Reconnaissance Orbiter (2006-present)

Emily Lakdawalla • May 08, 2008

I apologize for the long hiatus in this White Rock series, but I hope this entry will be worth the wait.

What's up in the solar system for the week of May 5

Emily Lakdawalla • May 05, 2008

Here's what's happening on active planetary missions this week.

What's up in the solar system for the week of April 28

Emily Lakdawalla • April 28, 2008

I thought it would be fun to start the week by taking stock of what's going on with all the active planetary missions out there.

Shadows cast from Victoria's capes and bays

Emily Lakdawalla • April 14, 2008

This is from the "just plain cool" department: An animation of the shadows of Victoria Crater as seen by the Mars Reconnaissance Orbiter, courtesy of Doug Ellison.

Spirit, seen from space

Emily Lakdawalla • March 24, 2008

The HiRISE instrument on Mars Reconnaissance Orbiter really is a spy camera in space. Check out this sequence of nine images from the HiRISE archives, which Doug Ellison pulled together into an animation covering more than a year of Spirit's mission.

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