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White Rock through the ages: Mars Express (2004-present)

Emily Lakdawalla • March 27, 2008

When we last visited White Rock on Mars, both Mars Global Surveyor and 2001 Mars Odyssey were mapping the planet.

Spirit, seen from space

Emily Lakdawalla • March 24, 2008

The HiRISE instrument on Mars Reconnaissance Orbiter really is a spy camera in space. Check out this sequence of nine images from the HiRISE archives, which Doug Ellison pulled together into an animation covering more than a year of Spirit's mission.

White Rock through the ages: Mars Global Surveyor (1997-2006)

Emily Lakdawalla • February 22, 2008

We first spotted the strange bright feature colloquially known as "White Rock" in Mariner 9 images from 1972, and revisited it, without learning much more, in Viking images from the late 1970s.

Showing off Saturn's moons

Emily Lakdawalla • February 19, 2008

There was a press release from the Cassini mission today about a pile of papers (14 of them!) being published in the journal Icarus about Saturn's icy moons. I haven't had time to read more than the overview article yet, but I wanted to come up with a graphic for an overview of Saturn's moons, and I couldn't resist delving into the massive database of Cassini images to produce something new

White Rock through the ages: Viking (1976-1980)

Emily Lakdawalla • February 13, 2008

This is the second installment in my look at one enigmatic feature on Mars as seen by all its orbiters through the more than thirty years of spacecraft observations.

Opportunity watches the clouds drift by

Emily Lakdawalla • February 12, 2008

Opportunity is now following a rather leisurely autumn schedule, according to the latest update on the mission website. Some of the work Opportunity is doing involves staring skyward, looking for patterns in the clouds that pass overhead at this time of year. One of the guys at unmannedspaceflight.com has put together some nifty animations of the wispy cloud patterns.

Antares tours Saturn's rings

Emily Lakdawalla • January 04, 2008

Antares dims and brightens as it passes behind the rings as seen from Cassini in this animation.

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