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Asteroids Facts

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Looking for amazing facts and informations about Asteroids? Below you can discover twenty-two curiosities that are real, even if they are weird or funny, so please make sure to vote what you think is interesting!

Discover interesting Asteroids facts

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The smallest known asteroid, 1991 BA, is only 6 meters (20 feet) across.
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Asteroids often collide with each other. Upon collision, smaller ones can break and end up as dust on the larger ones.
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In February 2013, another asteroid managed to enter earth’s atmosphere over Russia’s Chelyabinsk city. It exploded in sky but sent out shockwaves that caused quite some damage and injured 1,200 people. Scientists say that the asteroid was nearly 65 feet wide.
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Galileo was the first mission from NASA involving a spacecraft that would fly by an asteroid. In 1991 it flew by asteroid Gaspara and in 1993 it flew by asteroid Ida.
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The majority of the known asteroids in the Solar System orbit the Sun in a band between the orbits of Mars and Jupiter. This band is commonly referred to as the Asteroid Belt.
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Asteroids are also referred to as minor planets or planetoids.
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The technology used for discovering asteroids has improved dramatically since original discoveries and astronomers now have access to a range of powerful telescopes to aid in their research and discoveries.
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As well as being the first asteroid discovered, Ceres is also the largest known asteroid at 933 kilometers (580 miles) across.
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Asteroids are rich in precious metals and other metals, as well as water.
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The Hayabusa was a Japanese spacecraft that landed on the near-Earth asteroid Itokawa in 2005 and attempted to collect samples. In 2010, Hayabusa was a success at getting back to earth with a small sample of asteroid dust that is being studied by scientists.
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While asteroid impacts were more common in the past, they aren’t as frequent today.
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Scientists believe that the event leading to the extinction may have been a massive asteroid impact or huge volcanic activity. Events such as these could have blocked out sunlight and significantly changed the Earth’s ecology.
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Asteroids crossing the orbit of the Earth are called "Apollo objects".
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Most asteroids are irregular in shape because they are too small to exert enough gravitational pull to become spherical in shape.
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The first asteroid was Ceres, discovered by Giuseppe Piazzi in 1801.
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Astronomer William Herschel first coined the word asteroid, which means “star like” in 1802.
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Some asteroids have moons of their own!
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There are currently over 700,000 known asteroids in our solar system.
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There have been many ideas suggested as ways to avoid the unlikely but potentially devastating impact of an asteroid collision with Earth, these include using nuclear explosions to break the asteroid into smaller pieces or other weapons to deflect it off course.
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Some asteroids are actually blown-out comets. The ices are gone, and all that’s left is the rocky material.
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An asteroid is known as a meteorite only when it crashes on Earth. When this happens a fireball effect occurs that can be seen. The meteoroid usually burns up well before it reaches the surface of our planet.
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Although asteroids are believed to be smaller objects, scientists believe that there are nearing 200 asteroids that are known to be larger than 100 km in diameter.

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