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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 significant physical and biospheric ... The Chelyabinsk meteor is the largest recorded object to have encountered the Earth since the Tunguska event.

www.space.com/33695-thousands-meteorites-litter-earth-unpredictable-collisions.html

Aug 10, 2016 ... Thousands of meteorites weighing about a pound are thought to fall to Earth every year, but many of these events go unnoticed, because the ...

curious.astro.cornell.edu/about-us/75-our-solar-system/comets-meteors-and-asteroids/meteorites/313-how-many-meteorites-hit-earth-each-year-intermediate

Jul 18, 2015 ... (Intermediate) · Do asteroids ever do anything good in the Solar System? ( Beginner) · Are meteorites hot or cold when they hit Earth?

www.bostonglobe.com/news/world/2013/02/15/how-often-meteorites-strike-earth/VTOqWEKzwjHwnTDTSmfSCJ/story.html

Feb 15, 2013 ... Many are burned up by friction and the heat of the atmosphere, but those that survive and strike the Earth are called meteorites. They often hit ...

www.theatlantic.com/technology/archive/2013/02/meteorite-strikes-are-actually-quite-common/273211

Feb 15, 2013 ... Earth gets hit up to 10 times a year, experts say. ... How often does Earth witness the kind of meteorite strike that Russia just endured? .... country, and we will use every lawful tool that we have to do that,” he said at a gathering ...

www.txstate-epdc.net/just-frequently-meteors-hit-earth

How often is Earth hit by meteors from space? For technicality's sake, a meteor is just a piece of an asteroid or comet that has entered Earth's atmosphere.

astronomy.stackexchange.com/questions/13902/how-often-do-meteorites-hit-the-earth

There is definitely not a catalogue of all meteorites hitting Earth. For instance, the ones falling in desert areas and in the ocean aren't found, and even ...

www.nasa.gov/mission_pages/asteroids/overview/fastfacts.html

Meteor: The light phenomena which results when a meteoroid enters the Earth's ... About once a year, an automobile-sized asteroid hits Earth's atmosphere, creates an .... Objects large enough to do damage at the surface are much rarer.

www.dailymail.co.uk/sciencetech/article-2634962/Watch-5-000-meteoroids-bombard-Earth-day-REAL-TIME-Map-plots-comet-debris-burning-heads.html

May 21, 2014 ... Every day, more than 40 tonnes of meteoroids hit our atmosphere. ... A meteor is what we call a flash of light in the atmosphere when debris ...

www.psi.edu/epo/faq/meteor.html

For the finds, irons do not look like Earth rocks while stones may be harder to .... Therefore, when an asteroid hit the Earth's surface at typical velocities (which we  ...