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Our journalists and guest bloggers bring you stunning imagery and the space stories that matter most.

Congratulations to the California Science Center on getting Space Shuttle Endeavour!

Emily Lakdawalla • April 13, 2011

Space exploration is an international endeavor and I usually try to speak as a citizen of Earth rather than one of my nation, state, or city, but I'm going to ask you to indulge me in a little local boosterism today.

What's up in the solar system in April 2011

Emily Lakdawalla • March 31, 2011

April 2011 will see MESSENGER begin the science phase of its orbital mission at Mercury, and should, I think, also see the start of Dawn's approach observations of Vesta. At Mars, Opportunity is back on the road again, rolling inexorably toward Endeavour. At Saturn, Cassini will continue its focus on Saturn and Titan science.

Phobos LIFE gets a ride on Endeavour as Shuttle LIFE!

Emily Lakdawalla • March 25, 2011

The Planetary Society is contributing this thing called the Living Interplanetary Flight Experiment (LIFE) to Russia's Phobos sample return mission -- it's basically a sealed puck with dormant microbes inside that'll fly to Mars and back in the return capsule, and biologists will take a look to see what damage the little bugs suffered during their space journey.

Uranus and Challenger

Emily Lakdawalla • January 28, 2011

In the past week there have been 25th anniversaries of two events in 1986, one great, one terrible: the closest approach of Voyager 2 to Uranus on January 24, and the explosion of the space shuttle Challenger upon liftoff on January 28.

Discovery Launch Scrubbed, Again

Mat Kaplan • November 05, 2010

The launch has been scrubbed once again due to a critical hydrogen leak detected once fueling had been underway for a while.

Days of Downs and Ups

Mat Kaplan • November 04, 2010

Discovery has suffered an electrical problem related to one of the main engines. Thanks to delays related to that, and to weather concerns, the launch was scrubbed until Friday at 3:04pm.

Discovery Launch at T-22 Hours: A Study in Contrasts and Enthusiasm

Mat Kaplan • November 02, 2010

Mat Kaplan is at the Kennedy Space Center, 22 hours before shuttle Discovery is due to launch. Parts of the KSC are old and uncared for, while others are at the bleeding edge of space-flight technology.

Space Shuttle: Not Designed by Hollywood

Mat Kaplan • November 02, 2010

A brief musing on the public opinion of the shuttle when it was first unveiled, and now, as it's about to be retired.

There is something about the space shuttle...

Mat Kaplan • November 01, 2010

Mat Kaplan relays his experiences and thoughts as he makes his way to the Kennedy Space Center to witness the launch of the shuttle Discovery.

Venus, and the Moon, and Atlantis, and ISS, and Magellan

Pam Chadbourne • May 14, 2010

Pam Chadbourne, one of the many engineers who made the Magellan Radar Mapper mission possible, sent this note out to Magellan team members this morning, and graciously permitted me to post it here.

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