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News Stories relating to "impact"

New Studies add Evidence to the Younger Dryas Impact Hypothesis

Two new studies have added new evidence to the theory that a major airburst from a meteor or comet occurred over North America, ushering in a 1,400-year cooling period called the Younger Dryas that occurred between the Pleistocene and the Holocene eras. The Younger Dryas saw the extinction of most of the large land mammals across North America,...
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Armageddon-Asteroid's 2169 Impact Risk Isn't as Dire as Many Fear

Discovered in September of 1999, asteroid 101955 Bennu is a 500-meter (1,640 foot) asteroid that crosses Earth's orbit once every six years. Because it has been observed for 17 years, astronomers have been able to plot its orbit very accurately, and have found that it will make a series of extremely close passes to the Earth between 2169 and 2199...
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Deep Impact: From Fantasy to Fact?

Unknown Country has been keeping a keen eye on the skies just recently, and with good cause: following the revelation last week that the Earth had narrowly escaped serious damage from 26 very sizeable asteroids over the past few years, another...
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Asteroid on the Way? Pray

That's the (rather unscientific) advice to Congress from NASA chief Charles Bolden, who basically says that if a large asteroid heads towards a big US city--as it recently did in Russia--there's not much else we can do. He told them, "From the information we have, we don't know of an asteroid that will threaten the population of the United...
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Comet Aiming for Mars

Will life on Mars go the way of the dinosaurs before we have a chance to discover it? Incoming Comet C213/A1, discovered on January 1st, is expected by some astronomers to pass within 28,000 miles of Marsin 2014. But cometary trajectories change, and an impact is not impossible, although NASA estimates that the object will pass Mars at a distance...
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Asteroid Hunting

Asteroid impacts are rare, but they can cause incredible harm (look what one did to the dinosaurs!). In 1908, one of them flattened 800 square miles in the...
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Ancient Catastrophe Explains So Much

On this week's Dreamland, Andrew Collins talks about an ancient catastrophe that wiped out most of the life in North America 13,000 years ago. It could be the reason that why the Indians were so completely decimated by the Europeans when they arrived?because the continent, although lush, was relatively empty.

Two researchers have a...

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Asteroid Impacts May Have Influenced Evolution of Man

Scientists used to think that human evolution happened steadily and gradually, over millions of years, but they couldn?t explain why certain early hominids, such as Neanderthals, seemed to mysteriously die out. Now two researchers have decided that these die-outs are due to asteroid impacts and that we are the lucky survivors, who managed...

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