Posts Tagged 'asteroid'

5-Mile Wide Buried Asteroid Crater Discovered in Canada

bow-city-crater-canada

A 5-mile wide and 3,000 foot deep asteroid impact crater has been hidden near Bow City, Alberta, for millions of years. Bow City has been deserted for decades.

Read more @ SciTechDaily

Asteroid Dust Could Shield Earth from Harmful Solar Radiation

asteroids-dust-cloud-shield

Scientists propose a dust cloud made of asteroid material could help to cool Earth. Here, an artist’s depiction of what a spacecraft spewing asteroid dust might look like. CREDIT: Charlotte Lücking, based on images from ESA and NASA.

Scottish scientists have proposed to use a giant space-based dust cloud, blasted off an asteroid, to shade the Earth from the sun. Deliberately manipulating the Earth’s climate with large-scale engineering projects is called geoengineering and these proposals are always controversial because of the risk that they entail.

Read more @ SciTechDaily

Billionaires and Futurists Plan Space Missions to Mine Asteroids for Metals

leo-arkyd-space-telescope-planetary-resources

It’s been long thought, especially in science-fiction, that once Earth’s dwindling metallic resources dry up, the human race would look to the stars for precious metals. While this has been posited for decades in science-fiction literature, this is the first time that futurists are actually planning missions to harvest asteroids from space for metals.

Read more @ SciTechDaily

Bus-Sized Asteroid Barely Misses Earth

asteroid-impact-earth

An asteroid about the size of a bus shaved by Earth in what’s been described as a near miss. However, experts weren’t concerned that it might have impacted. This isn’t uncommon and these types of asteroids are hard to see except when they come quite close to Earth.

Read more @ SciTechDaily


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ranjitwithkinginbehand.jpgI'm Range, your host. On the menu, photos, art, stories, entertainment and reviews. Links, maths, education and social issues. I'm in Quebec (Canada) or Taiwan (R.O.C.). Follow me on Twitter.

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