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Impact event - Wikipedia

en.wikipedia.org/wiki/Impact_event

An impact event is a collision between astronomical objects causing measurable effects. Impact ... When large objects impact terrestrial planets like the Earth, there can be .... Objects with a diam...

What would happen if a large object hit the Earth?

www.astronomycafe.net/qadir/q975.html

Objects 100 meters across collide with the Earth every few hundred years and deliver about 2 Megatons of TNT equivalent. A 1 kilometer-sized object impacts ...

What Would Happen If the Asteroid Actually Hit Earth Today?

gizmodo.com/5984469/what-would-actually-happen-if-the-2012-da14-asteroid-crashed-for-real

Feb 15, 2013 ... So what would really happen if their calculations are wrong? ... centimeter and a speed of 12.7 kilometers per second hitting Earth at a 45 degree angle. ... of a direct hit like the one described above would be very, very thin. ... According to impact calculations, a low density object like DA14 would have to be ....

Effects of an Asteroid Impact on Earth - Astronomy Notes

www.astronomynotes.com/solfluf/s5.htm

Apr 25, 2013 ... What would be the effects of an asteroid hitting the Earth? ... A 1-kilometer object has a mass = 1.31 billion tons. ... If the asteroid hits the ocean, the surrounding water returning over the the hot crater floor is vaporized .... asteroid called 2012 DA14 were potent reminders that an impact can happen any time.

What would be the environmental effects if the earth collided with a ...

www.scientificamerican.com/article/what-would-be-the-environ/

If the comet is 10 kilometers across or larger (that is, if the impact carries an energy of ... so after a collision with a one-kilometer object; a 10-kilometer object might block out the ... Animals that happen to live underground, where roots and other food ... "Scientists are still divided on whether the object that struck the e...

Frequently Asked Questions - Near-Earth Object Program - NASA

neo.jpl.nasa.gov/faq/

With over 90% of the near-Earth objects larger than one kilometer already discovered, the ... fragments are the sources of most meteorites that have struck the Earth's surface. ... If particular asteroids can be identified as the sources for some of the .... A catastrophic cometary collision with the Earth is only likely to happen ...

Meteorites, Impacts, & Mass Extinction - Tulane University

www.tulane.edu/~sanelson/geol204/impacts.htm

Dec 1, 2014 ... As we will see the evolution of life on the Earth has likely been affected by .... When a large object impacts the surface of the Earth, the rock at the site of the ... An impact like the one that struck the Yucatan Peninsula, in Mexico about 65 .... What would happen if another such event occurred while we humans ....

What would happen if a large asteroid ten times the size of the earth ...

www.quora.com/What-would-happen-if-a-large-asteroid-ten-times-the-size-of-the-earth-missed-it-by-a-few-kilometers

First, that's no asteroid - it's a Neptune-like planet. Second, everyone dies™. The tidal forces ... I'm familiar with what would happen if a very large asteroid struck the earth, but what would happen if a very large asteroid struck the sun? ... We could still be hit by a 1 kilometer asteroid, with not much warning, maybe a...

What would happen to Earth if an asteroid hit the moon and knocked ...

www.quora.com/What-would-happen-to-Earth-if-an-asteroid-hit-the-moon-and-knocked-it-off-its-orbit-and-we-lost-it-for-good

I suspect we'd have bigger problems than simply losing the moon. The moon orbits around the ... Let's put some boundary values on an object that would accelerate the moon to that velocity. The easiest way for a celestial ..... What will happen if one more moon suddenly appears in the earth's orbit? What would happen to ...

What Would Happen if Asteroid 2012 DA14 Hit Earth? - Space.com

www.space.com/19741-asteroid-2012-da14-earth-impact-effects.html

Feb 12, 2013 ... ... off the dinosaurs — that behemoth was likely about 6 miles (10 kilometers) wide ... "Should an object of that size hit Earth, it would cause a blast with the energy ... If asteroid 2012 DA14 were to strike the planet, it would probably ... She loves to travel and one day hopes to see the northern lights in pers...

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What would happen if an asteroid 10 kilometers across hit the Earth ...

curious.astro.cornell.edu

If an asteroid / meteorite of about 10 km in diameter hit either a) land or b) ocean, ... of the Earth's crust, creating a crater more than one hundred kilometers across, ... The last time this happened was 65 million years ago, when an asteroid struck the Earth, ... (Intermediate) · Could there be objects orbiting interior t...

Here's What Would Happen If an Earth-Sized Asteroid Hit Earth ...

motherboard.vice.com

Jan 26, 2015 ... Here's What Would Happen If an Earth-Sized Asteroid Hit Earth ... expect another object of this size to pass so closely to Earth until August 7, 2027 . ... what the damage would be like one kilometer away from the impact site.

What Would Happen If Comet Swift-Tuttle Hit the Earth? - Live Science

www.livescience.com

Jul 21, 2016 ... Here's what could happen if Comet Swift-Tuttle collided with Earth. ... alone in space, and some of those cosmic objects can be downright dangerous. ... Comet Swift-Tuttle is "certainly one of the largest" objects that crosses ... The cosmic object measures about 16 miles (26 kilometers) across, and when i...