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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

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.

On the masses and motions of mini-moons: Pandora's not a "shepherd," but Prometheus still is

Emily Lakdawalla • July 04, 2014 • 4

As Cassini celebrates 10 years at Saturn, we're beginning to see its long-term observations of Saturnian moons bear fruit. A surprising new result: While Prometheus exerts control over the F ring and Atlas, Pandora -- long thought to be a shepherd of the F ring -- does not.

A close look at Saturn's closest moons

Emily Lakdawalla • June 26, 2014 • 1

A new composite image of the eight named moons that orbit closest to Saturn, and a list of all the best Cassini observations of these moons.

Of Rings and Resolution

Bill Dunford • June 23, 2014 • 3

Seeing Saturn before and after Cassini.

Another Day in the Solar System

Bill Dunford • May 12, 2014 • 1

One day, five worlds.

Another Pale Blue Dot — Uranus Spied By Cassini

Val Klavans and Ian Regan • April 30, 2014 • 1

The Cassini mission has already returned an array of images of other solar system members from Saturn orbit: Earth (and the Moon), Venus, Mars, and Jupiter. It’s time to add another world to that list!

Intro Astronomy Class 9: Titan, Uranus and Neptune Systems

Bruce Betts • April 11, 2014

Examine Saturn's moon Titan and explore the Uranian and Neptunian systems in this video of class 9 of Bruce Betts' Introduction to Planetary Science and Astronomy class.

Intro Astronomy 2014. Class 8: Icy Galilean Satellites, Saturn System

Bruce Betts • April 11, 2014

Explore the icy moons of the Jupiter System and tour the Saturnian system in this video of class 8 of Bruce Betts' Introduction to Planetary Science and Astronomy class.

Help name the last phase of the Cassini mission!

Emily Lakdawalla • April 10, 2014 • 13

The scientists on the Cassini team are incredibly excited about the final, "proximal orbit" phase of the mission. But they want a punchier name for it, and they're asking the public for help.

LPSC 2014: Titan's Land of Lakes

Emily Lakdawalla • March 31, 2014 • 2

Report from a varied session on Titan's lakes at this year's Lunar and Planetary Science Conference.

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