| 24-June-2008 |
Midwinter Energy Diet |
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Imagine having only enough energy to run a microwave oven for seven minutes each day. Think of it as your energy diet -- it's all you have to survive. Basically, that's what NASA's Mars rover, Spirit, experienced in June 2008.
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| 20-Apr-2008 |
Wanted: Space-Age Dust Removal |
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If Mars had an on-line Web site for ads, one of them might say something like this: "Wanted: Gentle space-age dust removal system to clean solar cells without leaving grit behind. Please direct inquiries to NASA."
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| 16-Apr-2008 |
To Follow the Water on Mars, Look for Fins! |
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Though they're not attached to creatures of the deep, fins made of rock poke up above the surface and suggest past water on Mars. NASA's Opportunity rover took images of a thin fin on the edge of a rock in "Victoria Crater." The fin was rich in hematite, a mineral that often forms in the presence of water.
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| 09-Apr-2008 |
Spot-on Science! |
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Instead of taking spots out, NASA's Mars rovers put spots in! While driving backward down the north rim of "Home Plate," Spirit used its robotic arm to clear away grit from flat rocks under its wheels. Upon taking a second look, Spirit discovered not only spots but stripes.
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| 24-Mar-2008 |
Watching Martian Clouds Go By |
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Opportunity turned its rover eyes skyward to observe clouds drifting overhead that look like cirrus clouds on Earth -- featherlike formations composed mostly of ice crystals.
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| 03-Mar-2008 |
A Woman's Place Is... in Space! |
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Nowadays it's not unusual to find a woman at the helm -- leading a corporation, commanding a space shuttle, or even operating a rover on Mars, but it's rare to have a supermajority of women in some technical fields.
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| 09-Jan-2008 |
Out of Bounds |
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Steep terrain can be a hindrance on Mars as well as Earth. NASA's Mars rover Opportunity recently encountered a band of darker rocks inside "Victoria Crater" that increased in steepness.
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