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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

One Ocean World Among Many

Jim Bell • June 03, 2013 • 6

I'm absolutely floored when I stop to think that our beautiful blue ocean is only one of perhaps a half dozen or more oceans on other worlds in our solar system, and only one of probably millions (or more) oceans on other Earth-like planets in our galaxy. Oceans abound!

One Day in the Solar System

Bill Dunford • April 08, 2013 • 4

Dispatches from five different worlds--all sent by robotic spacecraft on the same day.

Messages of Wonder

Bill Dunford • March 18, 2013

Some lovely, rarely-seen images from the MESSENGER mission.

Pretty picture: tessera terrain on Venus

Emily Lakdawalla • February 07, 2013 • 1

In which I dive into the Magellan radar data set and come up with some images of an unusual and possibly unique solar system terrain: tessera.

DPS 2012, Tuesday: Titan's surface

Emily Lakdawalla • October 17, 2012 • 4

Tuesday morning at the Division of Planetary Sciences meeting featured talks on the surface composition and landforms on Titan, including lakes and "hot cross buns."

A couple of gems from the archives

Emily Lakdawalla • September 10, 2012 • 2

We're still working on migrating content from the old to the new website. This week, that means I am looking, one by one, through some great amateur-processed space images.

Talking Climate With Bill Nye

Mat Kaplan • July 03, 2012 • 2

Talk about changing climates on this world and others brought 600 people to the Boulder Theater.

Not Necessarily Your Last Venus Transit!

Jim Bell • June 04, 2012 • 3

Unless you are lucky and healthy enough to live for another 105 years, tomorrow will be your last chance to see a Venus transit from the surface of the Earth. But this need not be the last transit of Venus that you will ever see.

Transit of Venus June 5: Why Should You Care and How to Observe

Bruce Betts • June 02, 2012 • 2

A rare astronomical event occurs June 5/6. Find out why you should care and how to observe it.

Some Details About Transits of Venus

David Shortt • May 22, 2012 • 2

The upcoming rare transit of Venus is one step in a long dance among Earth, Venus and the Sun. Transits of Venus follow a peculiar pattern—two transits 8 years apart, then 105.5 years with no transits, then two transits 8 years apart, then 121.5 years with no transits, for a total cycle of 243 years—and thereby hangs a tale.

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