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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?

Atmospheric Waves Awareness: An Explainer

Anna Scott • April 20, 2016 • 4

There are two types of atmospheric waves that are critically important on Earth and other planets: gravity waves and planetary waves.

Favorite Astro Plots #4: Classifying Exoplanets

Jingjing Chen • April 15, 2016 • 6

Until just a few years ago, a plot of mass versus size of other worlds would have looked pretty sparse and uninformative. But thanks to the tireless efforts of exoplanet astronomers, we now know fairly precise masses and radii for hundreds of distant worlds.

Continuing the Hunt for Exoplanets

Meg Schwamb • March 04, 2016 • 6

Meg Schwamb highlights some of the upcoming space-based missions that will search for planets beyond our solar system.

Using Lasers to Lock Down Exoplanet Hunting

Bruce Betts • September 26, 2014

The Planetary Society is launching a new collaboration with Yale exoplanet hunter Debra Fischer and her team, the Exoplanets Laser project. We will support the purchase of an advanced, ultra stable laser to be used in a complex system they are designing to push radial velocity exoplanet hunting to a whole whole new level.

The Habitable Zone of Inhabited Planets

Jaime Green • July 07, 2014 • 10

A team of Colombian researchers are arguing for a new refinement to the idea of the habitable zone that takes the presence of life itself into account.

How Weird Is Our Solar System?

Jaime Green • May 05, 2014 • 6

Earth and its solar system compatriots all have nearly circular orbits, but many exoplanets orbit their stars on wildly eccentric paths. Is our home system strange? Or is our sense of the data skewed?

Intro Astronomy 2014. Class 11: Exoplanets and Solar System Origin and Formation

Bruce Betts • April 25, 2014

Learn about the formation and origin of the Solar System and go beyond our neighborhood to investigate exoplanets (planets around other stars) in this video of class 11 of Bruce Betts' Introduction to Planetary Science and Astronomy class.

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