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Not a Heart of Ice

Mark Marley • April 02, 2019 • 1

Mark Marley explains what planetary scientists mean when they say the word "ice."

A WIYN-win partnership

Jason Davis • June 04, 2018 • 1

NASA and the National Science Foundation are teaming up to observe exoplanets discovered by Kepler and TESS.

An update on the potential habitability of TRAPPIST-1

Franck Marchis • April 30, 2018 • 1

One year ago, Franck Marchis wrote an article about the remarkable discovery of the TRAPPIST-1 system. Here's an update.

Creating a guidebook for Earth's hypothetical twin

Jason Davis • January 25, 2018 • 3

Early Earth's atmosphere wasn't a place for humans. Yet the planet had microbial life—something we should keep in mind for exoplanets.

This newly discovered Earth-sized planet could harbor life

Jason Davis • November 15, 2017 • 3

And it's only 11 light-years away.

This giant, flower-shaped starshade creates an artificial eclipse to see distant exoplanets

Jason Rhodes • June 23, 2017 • 8

Starshade is a proposed flower-shaped spacecraft that can create an artificial eclipse, allowing space telescopes to spot planets orbiting distant stars.

Wonderful potentially habitable worlds around TRAPPIST-1

Franck Marchis • February 22, 2017 • 14

Scientists have found seven, Earth-size planets orbiting a star just 40 light years away. Three lie in the habitable zone and could have water on their surfaces.

Dynamics of Exoplanet Systems

Erika Nesvold • October 31, 2016

At this year’s Division for Planetary Sciences/European Planetary Science Congress meeting, the Exoplanet Dynamics session was packed full of talks on tightly-packed multi-planet systems and their instabilities.

Proxima Centauri b: Have we just found Earth’s cousin right on our doorstep?

Franck Marchis • August 24, 2016 • 19

What began as a tantalizing rumor has just become an astonishing fact. Today a group of thirty-one scientists announced the discovery of a terrestrial exoplanet orbiting Proxima Centauri. The discovery of this planet, Proxima Centauri b, is a huge breakthrough not just for astronomers but for all of us. Here’s why.

Whither the Weather? A Jet Stream Explainer

Anna Scott • June 07, 2016 • 4

Jet streams are found in planetary atmospheres throughout our solar system. But what exactly are they?

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