Tag Archives: climate

Nasa Curiosity rover tests suggest life may have existed on Mars

Technogin

Link to video: Curiosity rover finds drinkable water on Mars, says Nasa

An ancient network of rivers on Mars once made parts of the planet habitable for microbial life, according to the latest analysis from Nasa‘sCuriosity rover.

Rock dust drilled from sediments in the giant Gale crater on the red planet were found to contain clay minerals that can have formed only in water, scientists said.

The discovery of other substances alongside the clays, such as calcium phosphate, suggest the soil was neutral or mildly alkaline, making the environment suitable for microbes.

Instruments aboard the Curiosity rover have allowed scientists to build up a gradual picture of the planet’s geological past, but the latest analyses are the strongest evidence yet that Mars was once hospitable to life.

“A fundamental question for this mission is whether Mars could have supported a habitable environment,” Michael Meyer, a lead scientist…

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Scientists propose DE-STAR to protect Earth from asteroids

Technogin

DE-STAR

BARELY a month after the White House rejected a petition to build a Death Star, a group of Californian scientists have pushed the idea forward again.

Instead of blasting rebellious planets, their proposed DE-STAR project is intended to be a “realistic” project to vaporise asteroids that pose a threat to Earth.

They’ve chosen the timing of their pitch well after last week’s meteor explosion over Russia and a close shave with a potential killer asteroid.

University of California physicist Philip M. Lubin and California Polytechnic State University researcher Gary B. Hughes unveiled a series of proposals for their Directed Energy Solar Targeting of Asteroids and exploRation (DE-STAR for short).

While not quite at the scale or strength of its Star Wars namesake, some of the proposals get close. And they’re designed to be more realistic than the Kickstarter campaign to build a Death Star replica.

All versions of the…

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