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Impact event

en.wikipedia.org/wiki/Impact_event

An impact event is a collision between astronomical objects causing measurable effects. Impact ... Asteroids with a 1 km (0.62 mi) diameter strike Earth every 500,000 years on average. .... thought ...

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 ...

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.

Ch 12 - Astronomy 1010 with Brittain at Clemson University ...

www.studyblue.com/notes/note/n/ch-12/deck/17155040

Apr 18, 2016 ... one of two tails seen when a comet passes near the Sun. composed of ionized gas ... What would happen if a 1-kilometer object struck Earth?

Impact of Earth by a near Earth Asteroid or NEO - Permanent

www.permanent.com/asteroids-impact-earth-neo.html

Impact of Earth by a near Earth asteroid, NEO object, or comet. ... Many people think this is the worst thing which could possibly happen to civilization. ... If an asteroid of size 1 kilometer hit Earth, it would cause a dust cloud which would block ...

The Probability of Collisions with Earth - JPL - NASA

www2.jpl.nasa.gov/sl9/back2.html

On Earth we see very few because geological processes such as weathering and ... The fragments covered an area of about 1 x 2 kilometers (0.6 x 1.2 miles), within which ... If this small iron meteoroid had landed in a city, it obviously would have ... A still larger impact by an object larger than about 5 kilometers is damaging .....

What If a Large Asteroid Were to Hit the Moon? - The Atlantic

www.theatlantic.com/technology/archive/2011/11/what-if-a-large-asteroid-were-to-hit-the-moon/248129/

Nov 8, 2011 ... What would happen if a large asteroid did strike the moon? ... it would have caused a good-sized crater -- about four kilometers across, ... to Don Yeomans, director of NASA's Near-Earth Object Program. ... 17 Final Photos Taken Before Tragedy Struck ... Weight seems to be one of Trump's preoccupations.

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 ... If a small asteroid or large meteoroid survives its fiery passage through the Earth's ... Asteroids are also the sources of most meteorites that have struck the Earth's surface and ... In this case, the impact debris would spread throughout the Earth'...

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 ....

Meteorites, Impacts, & Mass Extinction - Tulane University

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

Dec 1, 2014 ... A Meteoroid is a meteorite before it hits the surface of the Earth. .... A similar event if it happened over a large city, would be devastating. ... When a large object impacts the surface of the Earth, the rock at the site of the impact is ... An impact like the one that struck the Yucatan Peninsula, in Mexico about 65 ...

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

www.scientificamerican.com

If the comet is 10 kilometers across or larger (that is, if the impact carries an energy of ... This is what happened 65 million years ago at the end of the Cretaceous era, ... after a collision with a one-kilometer object; a 10-kilometer object might block out ... "Scientists are still divided on whether the object that struck th...