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Collapsed Arecibo telescope offers near-Earth asteroid warning from beyond the grave
Live Science ^ | October 30, 2022 | Brandon Specktor

Posted on 10/31/2022 2:34:04 PM PDT by SunkenCiv

The famous Arecibo Observatory in Puerto Rico completely collapsed in 2020. Now, scientists going through its final observations offer a major new asteroid report...

Using data collected by Arecibo between December 2017 and December 2019, scientists have released the largest radar-based report on near-Earth asteroids ever published. The report, published Sept. 22 in The Planetary Science Journal, includes detailed observations of 191 near-Earth asteroids, including nearly 70 that are deemed "potentially hazardous" — that is, large asteroids with orbits that bring them within 4.65 million miles (7.5 million kilometers) of Earth, or roughly 20 times the average distance between Earth and the moon.

Fortunately, none of these newly described asteroids pose an immediate threat to Earth; according to NASA, our planet is safe from deadly asteroid impacts for at least the next 100 years. However, scientists still pay close attention to near-Earth objects like these in case their trajectories happen to shift by some fluke of nature — say, a bump from another asteroid — thereby putting them on a collision course with Earth.

The new report also flagged several asteroids deemed worthy of future study, including an oddball space object called 2017 YE5 — an ultra-rare "equal mass" binary asteroid, made of two nearly identical size rocks that are constantly orbiting one another. (Each of the rocks is estimated to measure between 2,600 and 2,950 feet, or 800 to 900 meters, in diameter). The asteroid's high radar reflectivity may indicate an abundance of water ice beneath its surface, possibly making it a never-before-seen class of icy, equal mass, near-Earth asteroid, the researchers wrote.

(Excerpt) Read more at livescience.com ...


TOPICS: Astronomy; Science
KEYWORDS: 2017ye5; arecibo; asteroid; asteroids; astronomy; catastrophism; puertorico; science
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To: SunkenCiv

An asteroid hit the radio antenna... BAM!


21 posted on 10/31/2022 11:41:36 PM PDT by minnesota_bound (Need more money to buy everything now)
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To: minnesota_bound

Ironic. :^)


22 posted on 11/01/2022 8:50:49 AM PDT by SunkenCiv (Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
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To: SunkenCiv

Bond’s fault.

5.56mm


23 posted on 11/01/2022 9:13:54 AM PDT by M Kehoe (Quid Pro Joe and the Ho got to go)
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To: M Kehoe

They shouldn’t have listened to Bond, the antenna wouldn’t have collapsed if they had just stirred.


24 posted on 11/01/2022 9:31:26 AM PDT by SunkenCiv (Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
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To: SunkenCiv

Good point, too late.

5.56mm


25 posted on 11/01/2022 9:48:50 AM PDT by M Kehoe (Quid Pro Joe and the Ho got to go)
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