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Mars Exploration Rovers Update: Spirit and Opportunity Celebrate Christmas by Working

A.J.S. Rayl • December 21, 2004

The Mars Exploration Rovers are trudging ever onward through the dead of winter on the Red Planet dreaming, perhaps, if robots dream, of a white Christmas. But Spirit and Opportunity are robots after all and come this weekend "the poor little rovers will have to keep working, even on Christmas," MER Project Scientist Joy Crisp, of the Jet Propulsion Laboratory (JPL), told The Planetary Society earlier today.

Mars Exploration Rovers Update: Spirit Climbs up Husband Hill as Opportunity Returns to Karatepe to Exit Endurance Crater

A.J.S. Rayl • December 09, 2004

The Mars Exploration Rovers are roving ever on into new territories and deeper into the history books as they close in on the end of one full Earth year of active duty at their respective sites on Red Planet.

IBM's World Community Grid: A New SETI@home-Inspired Venture

Amir Alexander • November 24, 2004

As SETI@home has demonstrated, untold millions around the world are ready and eager to donate their computer time for the advancement of knowledge and the benefit of humankind. The story of distributed computing is only just beginning.

No Longer Boring: 'Fireworks' and Other Surprises at Uranus Spotted Through Adaptive Optics

Emily Lakdawalla • November 11, 2004

Uranus has the unfortunate reputation of being the most boring planet in the solar system. But where it appeared to be a nearly featureless, hazy blue ball to Voyager 2, it is now blooming dozens of clouds that are visible to the sharp-eyed Keck II Telescope.

Mars Exploration Rovers Update: Spirit Climbs toward Uchben Opportunity Picks up Power while at Wopmay

A.J.S. Rayl • October 22, 2004

As winter gives way to spring on the Red Planet, the Mars Explorations Rovers are maintaining their 5-day a week work schedules and continuing to send surprises home to Earth. Despite a recurring 'ache' in one of her steering motors, Spirit is continuing her climb in the Columbia Hills toward a rock called Uchben, while her twin, Opportunity, is completing her work at Wopmay.

Mars Exploration Rovers Update: Rovers Expand the Water Story as Spirit Gets Back to Climbing and Opportunity Stops at Wopmay

A.J.S. Rayl • October 08, 2004

The Mars Exploration Rovers are returning more and more evidence that there was liquid water on Mars at some point in the distant past, team members reported at a telecom news briefing yesterday.

Mars Exploration Rovers Update: Spirit Sits with Steering Glitch, Opportunity Makes Tracks Toward Burn's Cliff

A.J.S. Rayl • October 06, 2004

The worst of the Martian winter is over for the Mars Exploration Rovers, but the robots' own dark days appear to be looming as Spirit hits a 'bump' that's kept her at a standstill for a week now.

Close Your Left Eye, Then Your Right: Simultaneous Observations of Asteroid 4179 Toutatis from Two Chilean Telescopes Demonstrate Parallax

Emily Lakdawalla • September 29, 2004

This morning, asteroid 4179 Toutatis was so close to Earth that simultaneous observations from two telescopes in the same country could show parallax that is obvious even to the least experienced observer. The two telescopes belong to The European Southern Observatory and are located at La Silla and Paranal in Chile

Very Close Approach by Asteroid 4179 Toutatis: It's Not a Crisis, It's an Opportunity

Emily Lakdawalla • September 27, 2004

On Wednesday, September 29, Earth will dodge a cannonball: the Near-Earth Asteroid known as 4179 Toutatis will buzz by at a distance only four times the distance from the Earth to the Moon -- about one and a half million kilometers, or about a million miles. But, as the wisdom goes, "close" only counts in horseshoes and hand grenades; Toutatis' flyby will have no effect whatsoever on us.

Mars Exploration Rovers Update: Spirit and Opportunity Roving Again as NASA Extends Tours of Duty

A.J.S. Rayl • September 23, 2004

After nearly two weeks of sparse, infrequent communication, Spirit and Opportunity have survived winter solstice and resumed "reliable" contact with Earth and the Mars Exploration Rover team -- and NASA has extended funding for an additional six months of operations, as long as the little robot geologists keep working, space agency officials announced late Tuesday.

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