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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

Door 31 in the 2010 advent calendar

Emily Lakdawalla • December 31, 2010

Time to open the thirty-first (and next-to-last) door in the advent calendar. Where in the solar system are these dark-rimmed craters?

Bye bye, Kodachrome, but "Kodak moments" will live on in space

Emily Lakdawalla • December 31, 2010

This week is the end for Kodachrome film. It's a casualty of the digital revolution.

Door 30 in the 2010 advent calendar

Emily Lakdawalla • December 30, 2010

Time to open the thirtieth door in the advent calendar. Where in the solar system is this ridged crater?

The Year in Pictures: 2010

Emily Lakdawalla • December 30, 2010

I've just posted my annual roundup of significant images from planetary exploration in 2010.

What's up in the solar system in January 2011 - and the rest of the year in preview

Emily Lakdawalla • December 30, 2010

Ready for the New Year? It's going to be an exciting one.

Door 29 in the 2010 advent calendar

Emily Lakdawalla • December 29, 2010

Time to open the twenty-ninth door in the advent calendar. Where in the solar system is this fractured flowing ice?

A unique look inside the SOFIA telescope and other cool stuff

Emily Lakdawalla • December 29, 2010

Did you know that before Bill Nye was the Planetary Guy or even the Science Guy he was an aerospace engineer, designing components for the Boeing 747?

SOHO's 2000th comet

Emily Lakdawalla • December 29, 2010

SOHO was launched more than 15 years ago to study the Sun, primarily; but a side benefit of its constant observation of the Sun has been its ability to notice "sungrazers," comets that are on deadly close approaches to our star.

Door 28 in the 2010 advent calendar

Emily Lakdawalla • December 28, 2010

Time to open the twenty-eighth door in the advent calendar. Where in the solar system is this cratered and streaked surface?

365 Days of Astronomy Podcast: Small Worlds

Emily Lakdawalla • December 27, 2010

Today the 365 Days of Astronomy podcast aired my contribution, Small Worlds, about the smaller denizens of the solar system visited in the past year, and due to be visited in the next.

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