Tuesday, May 18, 2021

The Science Of Why An Asteroid, Not A Comet, Wiped Out The Dinosaurs

If a large asteroid strikes Earth, it has the potential to release an enormous amount of energy, ... [+] leading to local or even global catastrophes. The strike that led to the extinction of the dinosaurs, on energy concerns alone, could have been either a ~7 km comet or a ~10 km asteroid. When the rest of the evidence is examined, however, an asteroid is the only option.

The crater left by the asteroid that wiped out the dinosaurs is located in the Yucatán Peninsula. It ... [+] is called Chicxulub after a nearby town. Part of the crater is offshore and part of it is on land. The crater is buried beneath many layers of rock and sediment. A 2016 mission led by the International Ocean Discovery Program extracted rock cores from the offshore portion of the crater.

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Publisher: Forbes
Date: 2021-05-18
Author: Ethan Siegel
Twitter: @forbes
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NASA Exercise Finds That No Tech Is Available to Stop an Asteroid's Collision With Earth |

NASA and its peers around the world conducted a "table-top" exercise last month to determine the time scientists will take to understand and find ways to prevent a catastrophic collision of an incoming asteroid into the Earth. The simulation was hypothetical and intended to allow scientists time to prepare for such situations if that were to arise.

The participants were given information about the asteroid every day, which represented a month in the exercise timeline. The asteroid was determined to be anywhere between 35m and 700m in size. With each passing hour, the scientists began developing information.

Publisher: NDTV Gadgets 360
Date: Sat 15 May 2021 15:38:49 0530
Twitter: @Gadgets360
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NASA did not warn a real asteroid is on path to hit Earth | Fact Check

The claim was shared here on Facebook on May 7, 2021 alongside an image that appears to show an asteroid hovering near Earth.

"NASA warned an asteroid will hit the Earth in six months, nuclear bomb wouldn't be able to stop it."

Other posts with a similar claim have been shared here and here on Facebook and here on a public forum.

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Publisher: Fact Check
Date: 2021-05-18T04:07:14 02:00
Twitter: @AFPMakingof
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"Asteroid", "Staging" picked for Fajr Eastern Vista - Tehran Times

TEHRAN – Iranian movies "Asteroid" and "Staging" have been selected to be screened in Eastern Vista, a section dedicated to Asian filmmakers, at the 38th Fajr International Film Festival.

"Staging" by Alireza Samadi revolves around a group of people who stage fake car accidents in a bid to extract money from insurance companies.

Three movies by Iranian filmmakers will also be screened in Cinema Salvation, the official competition of the festival, which is scheduled to take place in Tehran from May 26 to June 2.

Publisher: Tehran Times
Date: 2021-05-18T14:28:41Z
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NASA Spacecraft Begins 2-Year Trip Home With Asteroid Rubble

CAPE CANAVERAL, Fla. (AP) — With rubble from an asteroid tucked inside, a NASA spacecraft fired its engines and began the long journey back to Earth on Monday, leaving the ancient space rock in its rearview mirror.

Osiris-Rex reached asteroid Bennu in 2018 and spent two years flying near and around it, before collecting rubble from the surface last fall.

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Publisher: KSLTV.com
Date: 2021-05-14T12:49:26 00:00
Twitter: @ksl5tv
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THIS WEEK @NASA: OSIRIS-REx Heads for Earth with Asteroid Sample, First Private Astronaut Mission

ABOVE VIDEO: Samples of an asteroid are headed back to Earth, a key prelaunch milestone for the Webb space telescope, and adding a third dimension to some cool imagery … a few of the stories to tell you about – This Week at NASA!

On May 10, NASA's OSIRIS-REx spacecraft bid farewell to near-Earth asteroid Bennu. O-REx then began its journey back to Earth, with an abundance of sample material it scooped up from Bennu last October. This image, captured in early April, is the last one taken of the asteroid by OSIRIS-REx.

Publisher: Space Coast Daily
Date: 2021-05-17T03:11:37Z
Twitter: @spacecoastdaily
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Do People Who Enjoy Science Have a High Tolerance for Disturbing Ideas? - Scientific American

What do you think of this month's cover image? We had a bit of a debate about it here at Scientific American' s virtual HQ. The illustration is based on scanning electron microscope images of Aspergillus fumigatus , a ubiquitous fungus that can infect the lungs. The intricate, other-worldly structures look really cool. But some people might reasonably think they're also kind of gross.

The most fascinating (to me) but potentially disturbing (to some people, understandably) experience I've had is observing a brain surgery, which I had the privilege of doing while I was a graduate student studying cognitive neuroscience. The patient had an arteriovenous malformation, a tangle of blood vessels that increases the risk of stroke.

Publisher: Scientific American
Author: Laura Helmuth
Twitter: @sciam
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Mass Effect Asteroid X57 Missing Engineers: Locations of these engineers in the game
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Publisher: Republic World
Date: 46255256F7B435C502CFADCCBD97D1C9
Author: Republic World
Twitter: @republic
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