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Blog Archive


Two JAXA mission updates: Akatsuki Venus orbit entry and PROCYON Earth flyby coming up!

Posted by Emily Lakdawalla on 2015/11/19 05:51 CST

Akatsuki is finally approaching its second attempt to enter Venus orbit, on December 7; let's all wish JAXA the best of luck! And PROCYON, whose ion engines have failed, is still an otherwise perfectly functional spacecraft that is taking photos of Earth and the Moon as it approaches for a flyby.

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A Day in the Solar System: 28 October 2015

Posted by Bill Dunford on 2015/11/09 07:44 CST | 5 comments

On October 28th, the Cassini spacecraft flew through the geyser plume of Saturn's moon Enceladus. But Cassini was not the only spacecraft operating in the solar system that day.

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A Roundup of Dust Devil Research

Posted by Ralph Lorenz on 2015/11/02 07:23 CST

Planetary scientist Ralph Lorenz briefs us on the current state of our knowledge on dust devils on Earth and Mars.

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Preparing for the Journey to the Moon, Mars and Beyond

Posted by Deepak Dhingra on 2015/10/21 10:03 CDT | 1 comments

Deepak Dhingra reports on a planetary analog field trip exploring a very young volcanic terrain in Idaho at Craters of the Moon National Monument and Preserve.

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Searching for the Origins of Earth’s Water

Posted by Van Kane on 2015/09/17 10:03 CDT | 1 comments

Three recently proposed low-cost space missions all aim to answer the same question: Where did Earth's abundant water come from?

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In Pictures: West Virginia from Space

Posted by Jason Davis on 2015/07/29 04:04 CDT | 2 comments

Jason Davis shares five images of his home state, West Virginia, taken by astronauts aboard the International Space Station.

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Posted by Dave Doody on 2015/07/28 09:04 CDT | 1 comments

The Deep Space Climate Observatory (DSCOVR) has begun sending us fresh, whole-hemisphere images of our own fragile planet. Some sources say that the spacecraft is "orbiting" the L1 point. Dave Doody thinks this warrants some scrutiny.

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DSCOVR mission releases first EPIC global view of Earth, more to come in September

Posted by Emily Lakdawalla on 2015/07/20 02:33 CDT | 12 comments

Five months after its launch, the Deep Space Climate Observatory (DSCOVR) mission has successfully journeyed to the region of space where Sun and Earth gravitational attraction offset each other. From the vantage point of L1, DSCOVR's EPIC camera has captured its first full-globe view of Earth, and it's well, epic.

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Welcome home, AstroSamantha

Posted by Emily Lakdawalla on 2015/06/15 09:41 CDT | 2 comments

Three astronauts have returned to Earth, and while I'm happy that they landed safely, I'm very sad that astronaut Samantha Cristoforetti is not in space anymore to wish us "buona notte dallo spazio" with her lovely photos and piquant comments.

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LPSC 2015: Aeolian Processes on Mars and Titan

Posted by Nathan Bridges on 2015/03/26 04:05 CDT

Planetary scientist Nathan Bridges reports on results from the Lunar and Planetary Science Conference about the action of wind on the surfaces of Mars and Titan.

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A Sky Full of Stars

Posted by Bill Dunford on 2015/03/09 08:03 CDT | 3 comments

In pictures of the planets, the stars aren't usually visible. But when they do appear, they're spectacular.

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Take My Free Online College Introduction to Planetary Science and Astronomy CSUDH Class

Posted by Bruce Betts on 2015/02/04 05:00 CST

Our own Dr. Bruce Betts is once again teaching his Introduction to Planetary Science and Astronomy college course online. Come join him.

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Flawed Beauties

Posted by Bill Dunford on 2015/02/02 05:03 CST | 1 comments

More examples of imperfect--but tantalizing--images from deep space.

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A (Difficult) Day in the Solar System

Posted by Bill Dunford on 2014/10/30 10:05 CDT | 13 comments

After a bad day on the launch pad, some perspective.

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From Mercury orbit, MESSENGER watches a lunar eclipse

Posted by Emily Lakdawalla on 2014/10/10 10:07 CDT | 3 comments

Watch as our enormous moon -- a quarter the diameter of the planet -- just winks out as it passes into Earth's long shadow, in an animation captured from more than 100 million kilometers away.

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45th Binghamton Geomorphology Symposium Report

Posted by Ted Stryk on 2014/09/23 12:15 CDT | 1 comments

The 45th Binghamton Geomorphology Symposium, usually focused on terrestrial studies, shifted this year to planetary science. Ted Stryk gives us an overview.

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Lovely, live, continuous, high-definition video of Earth

Posted by Emily Lakdawalla on 2014/05/20 05:19 CDT | 4 comments

Have you ever wished you could enjoy the astronauts' view of Earth from the Space Station? Now, you can. Just go to the live feed from the High Definition Earth Viewing (HDEV) experiment, crank it up to its highest resolution, let it take over your monitor, and watch Earth spin by.

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A new Earthrise over the Moon from Lunar Reconnaissance Orbiter's pushframe camera

Posted by Emily Lakdawalla on 2014/05/13 11:53 CDT

Earth's brilliant colors shine above the drab lunar horizon in this new "Earthrise" photo from the Lunar Reconnaissance Orbiter. An animation that accompanied the image release helped me to write an explainer on how pushframe cameras like Lunar Reconnaissance Orbiter's Wide-Angle Camera works.

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Another Day in the Solar System

Posted by Bill Dunford on 2014/05/12 09:56 CDT | 1 comments

One day, five worlds.

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Forensic Ballistics: How Apollo 12 Helped Solve the Skydiver Meteorite Mystery

Posted by Philip Metzger on 2014/04/21 09:33 CDT | 7 comments

What can a 45-year-old mission to the Moon tell us about a "meteorite" flying past a skydiver on Earth?

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