Related topics: earth · nasa · asteroid

School bus-size asteroid to safely zoom past Earth

A small near-Earth asteroid (or NEA) will briefly visit Earth's neighborhood on Thursday, Sept. 24, zooming past at a distance of about 13,000 miles (22,000 kilometers) above our planet's surface. The asteroid will make its ...

100th lunar asteroid collision confirmed by second telescope

Since March 2017, ESA's NELIOTA project has been regularly looking out for 'lunar flashes' on the moon, to help us better understand the threat posed by small asteroid impacts. The project detects the flash of light produced ...

Newly discovered comet is likely interstellar visitor

A newly discovered comet has excited the astronomical community this week because it appears to have originated from outside the solar system. The object—designated C/2019 Q4 (Borisov) - was discovered on Aug. 30, 2019, ...

How shiny are near-Earth objects?

Near-Earth objects (NEOs) are small solar system bodies whose orbits sometimes bring them close to the Earth. NEOs are consequently potential collision threats, but scientists are also interested in them because they offer ...

Twenty years of planetary defense

On March 11, 1998, asteroid astronomers around the world received an ominous message: new observational data on the recently discovered asteroid 1997 XF11 suggested there was a chance that the half-mile-wide (nearly one kilometer) ...

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