Related topics: earth · nasa · solar system · orbit · meteorite

New research reveals invisible meteors

In a new thesis from the Swedish Institute of Space Physics and Umeå University, unique methods for the analysis of radar data and simulations of meteoroids in the solar system are presented. The methods have been applied ...

Bright fireball may have dropped meteorites in Niagara region

A cosmic drama unfolded over southern Ontario on the night of Friday, Nov. 18, triggering an international collaboration and a meteorite hunt. Just before midnight Eastern time, the Catalina Sky Survey in Arizona detected ...

What would asteroid mining do to the world's economy?

About a decade ago, the prospect of "asteroid mining" saw a massive surge in interest. This was due largely to the rise of the commercial space sector and the belief that harvesting resources from space would soon become ...

New potentially hazardous asteroid discovered

An international team of astronomers on Monday announced the discovery of a large asteroid whose orbit crosses that of Earth, creating a small chance far in the future of a catastrophic collision.

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Asteroid

Asteroids, sometimes called minor planets or planetoids, are small Solar System bodies in orbit around the Sun, especially in the inner Solar System; they are smaller than planets but larger than meteoroids. The term "asteroid" has historically been applied primarily to bodies in the inner Solar System since the outer Solar System was poorly known when it came into common usage. The distinction between asteroids and comets is made on visual appearance: Comets show a perceptible coma while asteroids do not.

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