Articles

Mat Kaplan

This week's Planetary Radio talks with the head of the NASA Innovative Advanced Concepts Program about its mission and 12 newly-funded projects that could change the world.

Bill Dunford

New images from Mars.

Emily Lakdawalla

The Planetary Society and Cosmoquest have teamed up to offer a short course in space image processing, and I'll be teaching! The course comprises four one-hour sessions from October 14 to 23.

Daniel Fischer

Space blogger Daniel Fischer provides a preview of the exciting interplanetary observing campaign that has recently begun to study comet C/2012 S1 (ISON) from vantage points across the solar system.

Jason Davis

Professional astrophotographer Adam Block created a video showing the expansion of M1, the Crab Nebula, using two images taken more than a decade apart.

Emily Lakdawalla

A shameless plug for my article on

Vitaliy Egorov

Six months ago, I wrote about the Russian weather satellite Elektro-L, which has more than two years of successful experience in the geostationary orbit. Then I promised that I would be here to share the materials that we collected. I think it's time to deliver on the promise.

Emily Lakdawalla

Yesterday was the first anniversary of Curiosity's landing on Mars, and there was much rejoicing. It's been fun to look back at that exciting day, and it's been an opportunity to reflect on what Curiosity has accomplished in her first year. What science do we have to show for it?

Armin Kleinboehl

Observations made by the Mars Climate Sounder, an instrument aboard NASA’s Mars Reconnaissance Orbiter, have revealed new information about atmospheric tides on the Red Planet.

Larry Crumpler

This week Opportunity finished up a quick investigation of the strange rocky terrain out here in the plains where it is approaching the next mountain rim segment of Endeavour crater, Solander Point.

Mat Kaplan

Kat Scanlon tells Planetary Radio that Hawaii and Mars have more in common than you might think.

Casey Dreier

It seems like it was just yesterday that 2000 people gathered in the Pasadena Convention Center to celebrate Curiosity's landing on Mars. All of Planetfest 2012 is online for your enjoyment.

Bruce Betts

Shoemaker NEO Grant winner Bob Stephens specializes in lightcurves of near Earth asteroids to determine their physical properties. Here is an update on recent progress using his 2013 Planetary Society grant. This is the first in a series of updates on Shoemaker NEO Grant winners.

Bill Dunford

Seasons, sunlight, and shadow at the Moon's north pole

Jason Davis

Japan’s HTV-4 resupply vessel is en route to the International Space Station following a Sunday launch from the Tanegashima Space Center.

A.J.S. Rayl

The Mars Exploration Rovers (MER) mission Opportunity celebrated the 10th anniversary of its launch on July 7, 2003, and then went on to complete the last leg of its 2 km trek from Cape York to Solander Point. But just before the robot field geologist pulled onto the actual base of the ridge where it will spend its sixth Martian winter, Mars lured the team off the path with some of the weirdest Martian rocks the scientists have seen yet.

Emily Lakdawalla

Take a look at this amazing photo, captured by Curiosity from the surface of Mars on sol 351 (August 1, 2013). It is unmistakably Phobos.

Emily Lakdawalla

Does Pluto have an ocean under its ice? If it doesn't now, did it ever have one? How will we know?

Ted Stryk

This is a parting shot of Jupiter and Io, taken December 5, 1973, by the Pioneer 10 spacecraft, the first to see either world as a crescent.

Emily Lakdawalla

It seems like my attention wandered for just a moment, and all of a sudden Curiosity is really on the road. She's racked up drive after drive, methodically eating up the terrain between here and her goal: the ancient rocks at the foot of Mount Sharp.