30,000 near-Earth asteroids discovered, and numbers are rising

We have now discovered 30,039 near-Earth asteroids in the solar system—rocky bodies orbiting the sun on a path that brings them close to Earth's orbit. The majority of these were discovered in the last decade, showing how ...

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 ...

Asteroid sample brought back to Earth gets close-up look

In December 2020, Japan's Hayabusa2 spacecraft swung by Earth to drop off a cache of rock samples taken from a near-Earth asteroid called Ryugu. Asteroids like Ryugu are thought to represent the ancient building blocks of ...

Asteroid mining not a million miles away

Work by a team of University of Adelaide scientists to perfect metal and mineral extraction processes is bringing the possibility of mining the wealth contained within asteroids closer to reality. But science fiction won't ...

Zwicky Transient Facility nabs several supernovae a night

The results are rolling in from Caltech's newest state-of-the-art sky-surveying camera, which began operations at the Palomar Observatory in March 2018. Called the Zwicky Transient Facility, or ZTF, the new instrument has ...

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