Stories, updates, insights, and original analysis from The Planetary Society.

NASA to Build New Asteroid-Hunting Space Telescope

The yet-to-be-named telescope would launch as soon as 2024, as part of NASA's new, multi-pronged approach to planetary defense.

What the Shoemaker-Levy 9 Impact Taught Us

Twenty-five years ago, multiple fragments of comet Shoemaker-Levy 9 crashed into Jupiter, changing the face of the planet and the course of planetary science.

Pretty Pictures of the Cosmos: Lesser-Known Luminaries

Award-winning astrophotographer Adam Block shares some of his latest images highlighting some hidden gems.

Where We Are on 1 April 2019

Emily Lakdawalla takes us on a tour of the spacecraft currently exploring from within our solar system. All planets and spacecraft locations are shown at their location for April 1st, 2019.

This Thanksgiving, avoid the politics and talk space instead

If you're expecting to gather with extended family on Thanksgiving, avoid the politics. Here are some conversation starters to use at the dinner table that everyone can engage in.

Farewell, Kepler

NASA's Kepler space telescope helped us find our place in the cosmos.

An update on the potential habitability of TRAPPIST-1

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

Preview: NASA's TESS prepares for 2-year exoplanet hunting mission

The spacecraft is expected to discover 50 new Earth-sized planets and as many as 500 planets smaller than twice the size of Earth.

JWST heads once more unto the breach, dear friends

The James Webb Space Telescope will miss its target launch date and cost more money than expected, NASA announced.

An exoplanet-hunting space telescope turns and takes a photo of Earth

On December 10, Kepler—NASA’s prized exoplanet discovery telescope—will finally turn back and take a picture of the Earth.

A journey to Jupiter: Amateur astronomers create 1,000-image video of planet in motion

Peter Rosén shares an amazing animation of Jupiter made from more than 1,000 images taken by 91 amateurs from around the world.

On Cosmic Discovery and Human Significance

Jake Rosenthal takes us on a tour of the history of discovery of our place in the cosmos.

European Space Agency Announces Budgetary Commitments

ESA has committed to continuing its ExoMars programme and participation with the International Space Station, but cut funding for its Asteroid Impact Mission.

Spektr-RG sees (x-ray) light at the end of the tunnel

After many years of development, a cutting-edge Russian-German space observatory with little-known contribution from the US is finally approaching the launch pad...or so its scientists say.

Dynamics of Exoplanet Systems

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.

DPS/EPSC update: 2007 OR10 has a moon!

The third-largest object known beyond Neptune, 2007 OR10, has a moon. The discovery was reported in a poster by Gábor Marton, Csaba Kiss, and Thomas Mueller at the joint meeting of the European Planetary Science Congress and the Division for Planetary Sciences of the American Astronomical Society (DPS/EPSC) on Monday.

Rapidly Rotating Regular Satellites and Tides

Pluto’s small moons have unusual rotation rates and states. Now we know a moon of another dwarf planet does as well. Is there a connection?

Gaia's first galaxy map

The astronomy world is abuzz today because of ESA's announcement of the first release of data from the Gaia mission. Gaia is a five-year mission that will eventually measure the positions and motions of billions of stars; this first data release includes positions for 1.1 billion of them, and proper motions for 2 million.

The Many Names of WFIRST

NASA’s next big “flagship” astronomy mission, following the ambitious James Webb Space Telescope due to be launched in 2018, is currently known as the Wide Field Infrared Survey Telescope (WFIRST)—but it's had a slew of different names.

Hubble Series 1: How to Find Hubble Data

Processing Hubble data presents a host of challenges, and the first of these has nothing to do with processing at all.

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