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Astronaut Brings Back Space Undies for Scientists to Study


After four months in space, Koichi Wakata is returning to Earth -- and bringing his astronaut underwear with him. According to the Associated Press, scientists will be examining these experimental anti-bacterial, flame retardant, antistatic, and water-absorbent briefs. More importantly, the underwear (dubbed "J-Wear") is designed to be odor-free. Designed in Japan, the undies are made of a fabric composed of cotton and polyester. The seamless and light-weight material is also available in shirt, pants, and sock variations.

Since astronauts have no way of washing clothes, durability and length of wear are key as astronauts usually throw away worn clothes via cargo ships sent back into atmosphere. Wakata told the AP: "I wore them for about a month, and my station crew members never complained for about a month, so I think the experiment went fine." [From AP, via USA Today]

Astronauts at Risk of Hip Fractures

Astronauts risk their lives every time they venture into the great beyond. Space flight is perilous and they know it. What they may not know is that a new danger awaits them upon their return to earth.

University of California scientists have found that prolonged tours in space lead to an alarming loss of bone strength, reports the Daily Mail. Of the 13 astronauts tested (all spent up to six months on the International Space Station), all had experienced massive losses in hip bone strength. Together they averaged a 14-percent decrease in strength with several showing losses of 30 percent. To put it in perspective, old women with osteoporosis have similar bone-strength loss.

Essentially, unless strides are made to counteract the negative effects of space travel, astronauts will continue to be at risk for hip fractures later in life. We are sure NASA will come up with something. Astronauts should not have to worry about breaking their hips. They should worry about stuff that actually matters, like running into unfriendly, carnivorous aliens. [From: The Daily Mail]

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What It Will Be Like To Land On Mars

Mars Landing Site
Landing on another world seems like an equally exhilarating and terrifying proposition. Exactly 38 years ago today, Neil Armstrong and Buzz Aldrin were probably shaking in their space boots saying to themselves "I hope this works," as they descended to the surface of the moon.

Well if an article in Universe Today is to be believed, landing on Mars may be an even more terrifying endeavor. It seems these pesky things called the laws of physics prevent touching down on the red planet from being as straightforward as landing on Earth or even the Moon.

The airbag method used for deploying unmanned probes won't work since we'll probably want our astronauts to avoid death or maiming. The Martian atmosphere is too thin for parachutes or aerobrakes to be effective with such a heavy payload, and the gravity on our sister planet is too strong for a powered descent like that used on the aforementioned Apollo missions.

The best bet so far is to use an inflatable donut with a skin stretched across it in a conical shape that will slow the landing craft from Mach 4 or 5 to Mach 1.

From Slashdot

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