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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.

The solar eclipse in Africa seen from space

Vitaliy Egorov • November 05, 2013

On Sunday, the shadow of the Moon passed across Africa and the Atlantic Ocean. This was the last solar eclipse of the year. The Elektro-L satellite was able to observe the eclipse, and we can see the darkness of the lunar shadow covering Africa.

Juno is in Safe Mode again, but still okay

Emily Lakdawalla • October 16, 2013

After entering safe mode last week during its Earth flyby, Juno returned to normal operations and downlinked all engineering and science instrument data. It entered safe mode again on Sunday night, but it is expected to re-resume normal operations late next week.

Juno Flies By Earth Today

Casey Dreier • October 09, 2013

NASA's Juno spacecraft gets a gravity assist from the Earth on its way to Jupiter today. Learn all about today's close approach.

Juno's flying by Earth today, and images of the Moon are already on the ground!

Emily Lakdawalla • October 09, 2013

Juno flies past Earth for a gravity assist at 19:22 UTC today, and the first images from the encounter are already on the ground and processed by amateurs!

On space kindness and the Chelyabinsk meteor

Vitaliy Egorov • October 04, 2013

Through an act of kindness, we now have images of the Chelyabinsk meteor trail from Russia's Elektro-L satellite.

Relative and absolute ages in the histories of Earth and the Moon: The Geologic Time Scale

Emily Lakdawalla • September 30, 2013

A few days ago, I wrote a post about the basins of the Moon -- a result of a trip down a rabbit hole of book research. Here's the next step in that journey: the Geologic Time Scales of Earth and the Moon.

Caution: Spacecraft Under Construction

Mat Kaplan • August 20, 2013

Join Emily Lakdawalla and Mat Kaplan inside JPL's High Bay 1, where two Earth-revealing missions are being readied for launch.

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