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Tuesday, December 10, 2019
A little asteroid makes a substantial flash slamming into Jupiter

A little asteroid makes a substantial flash slamming into Jupiter

The apparent moment of impact on the solar system's largest world. Ethan Chappel An amateur astronomer captured a flash in Jupiter's atmosphere last month that appeared as a bright dot nearly the size of Earth when compared with the gas giant planet. New analysis of the footage finds the brief flare was caused by a relatively small…
An asteroid the size of an eighteen-wheeler snuck up on us, passing closer than numerous satellites

An asteroid the size of an eighteen-wheeler snuck up on us,...

An artistic impression of a near-Earth asteroid Theodore R. Kareta A space rock the size of a big semi-trailer trucked past our planet last week, going undetected as it approached and ultimately passed closer than many communications satellites in orbit.  Asteroid 2019 RP1 on Thursday made the third-closest approach of 2019 so far, coming within 37,399…
Bizarre asteroid provides scientists ‘very massive shock’ by altering coloration

Bizarre asteroid provides scientists ‘very massive shock’ by altering coloration

The Hubble Space Telescope captured this view of asteroid 6478 Gault and its two tails. NASA, ESA, K. Meech and J. Kleyna, O. Hainaut Asteroid 6478 Gault is an oddball. It sports a comet-like dust trail and, even more weirdly, it changed color from red to blue. "It is the first time scientists have observed…
Tiny robotic discovers an asteroid that’s freakishly without dust

Tiny robotic discovers an asteroid that’s freakishly without dust

Enlarge / Ryugu's rubble-pile surface, taken by MASCOT shortly before it hit and started bouncing. For the last few months, Japan's Hayabusa2 spacecraft has been engaged in various acts of interplanetary aggression, shooting the asteroid Ryugu in order to blast free material for a return to Earth. But Hayabusa2's visit has also featured various less…
An Asteroid Larger Than the Empire State Structure Will Pass Earth Quickly. However Do not Fret.

An Asteroid Larger Than the Empire State Structure Will Pass Earth...

Another asteroid is passing close by Earth but, no, it won't hit us. On Aug. 10, Asteroid 2006 QQ23 will fly within 0.049 astronomical units (4.6 million miles) of Earth at about 10,400 mph (16,740 km/h). This might not seem close, but it is close enough to classify the object as a near-Earth asteroid. Additionally,…
See the surprise asteroid that provided Earth a scare in July

See the surprise asteroid that provided Earth a scare in July

Asteroid 2019 OK moves across a backdrop of stars in this ISON GIF. S. Schmalz/ISON "Wait, what?!" That was the reaction of a lot of people when they heard about the discovery of a sneaky asteroid we didn't know existed until it zipped by Earth (at a safe distance) on July 25. Now we know…
A ‘city-killer’ asteroid got scarily near Earth, and astronomers didn’t learn about it till it was simply days away

A ‘city-killer’ asteroid got scarily near Earth, and astronomers didn’t learn...

A 427-foot-wide asteroid whizzed within 45,000 miles of Earth on Thursday. While that may sound far away, 45,000 miles is what astronomers consider a close shave: It's less than 20% of the distance between Earth and the moon. This was the closest we've come to an "Armageddon"-like scenario in at least a few years. Scientists…
A ‘city-killer’ asteroid got scarily near Earth the other day, and astronomers didn’t learn about it till it was simply days away

A ‘city-killer’ asteroid got scarily near Earth the other day, and...

A 427-foot-wide asteroid whizzed within 45,000 miles of Earth yesterday. While that may sound far away, 45,000 miles is what astronomers consider a close shave: It's less than 20% of the distance between Earth and the moon. This was the closest we've come to an "Armageddon"-like scenario in at least a few years. Scientists didn't…
Surprise asteroid zoomed by Earth today, and we didn’t even blink

Surprise asteroid zoomed by Earth today, and we didn’t even blink

NASA's Dawn spacecraft captured this view of the giant asteroid Vesta in 2011. Don't worry, asteroid OK 2019 is not this big. NASA/JPL-Caltech/UCLA/MPS/DLR/IDA The Earth just experienced the equivalent of strolling down the street and minding your own business when suddenly a baseball whistles by your ear. That baseball was asteroid 2019 OK, a previously…
How This Big, Superfast Asteroid Remained Hidden in Near-Earth Orbit

How This Big, Superfast Asteroid Remained Hidden in Near-Earth Orbit

The asteroid "2019 LF6" orbits close to the sun but on a different plane than our planets. Credit: California Institute of Technology The year goes by quickly for this newfound asteroid. The so-called 2019 LF6 asteroid circles the sun every 151 days, the shortest orbit of any known asteroid. This swift-moving rock snuggles closer to…

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