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From Mercury orbit, MESSENGER watches a lunar eclipse

Emily Lakdawalla • October 10, 2014

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.

45th Binghamton Geomorphology Symposium Report

Ted Stryk • September 23, 2014

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

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

Emily Lakdawalla • May 20, 2014

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.

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

Emily Lakdawalla • May 13, 2014

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.

Another Day in the Solar System

Bill Dunford • May 12, 2014

One day, five worlds.

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

Philip Metzger • April 21, 2014

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

Fireworks in the Earth's Sky Sent from the Moon: Reflections from LPSC 2014

Deepak Dhingra • April 03, 2014

Deepak Dhingra reports on presentations from this year's Lunar and Planetary Science Conference focusing on how impacts on the Moon have affected Earth.

Intro Astronomy Class 4: Eclipses, Mercury, Venus-Earth-Mars Atmospheres, Venus

Bruce Betts • February 28, 2014

This video of class 4 of Bruce Betts' Introduction to Planetary Science and Astronomy class discusses eclipses, Mercury, Venus, and a comparison of the atmospheres of Venus, Earth, and Mars.

Intro Astronomy Class 1: Tour of the Solar System

Bruce Betts • February 11, 2014

Take a tour of the Solar System in the video of class 1 of Bruce Betts' Introduction to Planetary Science and Astronomy class.

Looking Backward: Curiosity gazes upon the setting Earth

Emily Lakdawalla • February 05, 2014

A few days ago, Curiosity looked westward after sunset and photographed Earth setting toward the mountainous rim of Gale crater.

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

Bruce Betts • February 05, 2014

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

Cosmos with Cosmos Episode 12: Encyclopedia Galactica

Casey Dreier • February 05, 2014

Cosmos returns in fine form in its penultimate episode. Sagan explores the historical and scientific precedents for the search for extraterrestrial life (SETI) and our human desires to not be alone in the universe.

Cosmos with Cosmos Episode 11: The Persistence of Memory

Casey Dreier • January 27, 2014

Cosmos stumbles with an episode that is plodding, scattered, and more than a little preachy. This episode will only persist in my memory as a shadow of what could have been.

New version of panoramic view from Chang'e 3

Emily Lakdawalla • January 21, 2014

A higher-resolution version of the Chang'e 3 lander's panoramic view of the lunar surface has appeared on the Web, and artist Don Davis has cleaned it of artifacts to make a beautiful, seamless view. In other news, the mission has been reorganized to accommodate a possibly year-long adventure on the lunar surface.

Through a Glass, Darkly

Bill Dunford • January 13, 2014

When sent from deep space, even imperfect images can inform and amaze.

Finally, some high-quality photos from Chang'e 3!

Emily Lakdawalla • January 10, 2014

A pile of Chang'e 3 photos has been released to the Web, and they are much, much better than what I've seen before. They include, for the first time, photos of Earth from the lander.

NASA re-creates the Apollo 8 Earthrise using Lunar Reconnaissance Orbiter data

Andrew Chaikin • December 20, 2013

If there's one thing I've learned after decades of studying the first human voyages to another world, it's that there is always more to discover about Apollo. Case in point: The Apollo 8 Earthrise photo that became one of the iconic images of the 20th century.

Conversations with an interplanetary spacecraft: "Hi, Juno!"

Emily Lakdawalla • December 17, 2013

Juno's Earth flyby represented the first opportunity for many of the science instruments to be used on a planetary target. There were terrific photos of Earth and the Moon, plus a cool project to see if Juno could detect intelligent life on Earth.

First image from India's Mars Orbiter Mission

Emily Lakdawalla • November 20, 2013

Here, for your enjoyment, is the first image of Earth taken by the mission's Mars Colour Camera.

Science Against the Storm

Bill Dunford • November 11, 2013

In the face of disaster, the search for answers and ways to help continues, on the ground and in space.

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