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

Looking up at the asteroids in the neighborhood

Asteroids fly through our solar system all the time, but it's rare for us to take notice of them. But that's changed this week, as an asteroid passes within 1,231,184 miles of Earth on January 18. The asteroid, dubbed 7482 ...

Look up and watch asteroid 1994 PC1 fly past Earth this week

In a slow moving universe, asteroids give us a rare chance to see things moving in real time. We have such a chance coming right up on the evening of Tuesday, January 18, when 1.1-kilometer asteroid (7482) 1994 PC1 passes ...

Earth and Mars were formed from inner solar system material

Earth and Mars were formed from material that largely originated in the inner solar system; only a few percent of the building blocks of these two planets originated beyond Jupiter's orbit. A group of researchers led by the ...

Computer simulation models potential asteroid collisions

An asteroid impact can be enough to ruin anyone's day, but several small factors can make the difference between an out-of-this-world story and total annihilation. In AIP Advances, a researcher from the National Institute ...

Two teams report on study of Hayabusa2 asteroid samples

Two teams of researchers are publishing their findings thus far after initial study of samples collected from the asteroid Ryugu and returned to Earth last year by the Japanese space probe Hayabusa2. Both teams are large ...

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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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