0 Persons are tagged with #asteroid

#asteroid

One person like that
7 Likes
1 Shares
nowisthetime@pod.automat.click
nowisthetime

‘City-killer #Asteroid’ Hurtling Towards #Earth
https://www.youtube.com/watch?v=i8d-UC4qRwg

A “city killer” asteroid over 300 feet wide is expected to zoom by Earth on March 25. The space rock was discovered in late February, but only recently did astronomers determine it would not collide with our planet. It’ll sweep by at a distance less than halfway to the moon.

The asteroid has been labelled 2023 DZ2 and it’s a part of the Apollo family of asteroids. Current estimates put 2023 DZ2’s size at about 200 to 400 feet (60 to 120 meters) across. The asteroid is travelling at a speed of 17,672 miles per hour (28,440 km/h), or 7.90 km/second, relative to Earth.

2023 DZ2 is classified as a NEO (Near Earth Object). It orbits the sun every 3 years. Preliminary analysis of the space rock’s trajectory suggests a very unlikely 1-in-7,700 chance that the asteroid will impact Earth on March 28, 2026.

#asteroid #2023DZ2 #closeapproach

2 Likes
3 Comments
devevo@diasp.org
7B'JaJaDa

#evolution #nonavianDinosaurs #humans #mammals #asteroid #66millionyearsago
What If Non-Avian Dinosaurs Hadn’t Gone Extinct?
Nov 28, 2022 by The Conversation
About 66 million years ago, a 10-km-wide asteroid crashed into Earth near the site of the small town of Chicxulub in what is now Mexico. The impact unleashed an incredible amount of climate-changing gases into the atmosphere, triggering a chain of events that led to the extinction of non-avian dinosaurs and 75% of life on the planet. But this event made human evolution possible. The surviving mammals flourished, including little proto-primates that would evolve into Homo sapiens.
https://www.sci.news/paleontology/dinosauroids-11427.html

What If Non-Avian Dinosaurs Hadn’t Gone Extinct? | Sci.News

About 66 million years ago, a 10-km-wide asteroid crashed into Earth near the site of the small town of Chicxulub in what is now Mexico.

3 Likes
mtbaddict@diasp.org
ꂵꄲ꒤ꋊ꓄ꋬ꒐ꋊ ꃳ꒐ꀘꏂ

"Asteroid Apophis Is Coming Back And NASA Has a Risky Plan" https://youtu.be/hxy_Z6qp59g

So apparently in 2029 Apophis will be closer to Earth than satellites. The asteroid that wiped out the dinosaurs was 10-15km across, Apophis is 300m. So not a world ending event but a devastating event for sure.

That is why NASA has been experimenting with moving the trajectory of asteroids. They have a few years left to prepare still.

Tags: #dandelíon #space #news #asteroid #nasa #apophis #earth

via dandelion* client (Source)

1 Shares
ramnath@nerdpol.ch
ramnath

enter image description here
GROUND-BASED IMAGES OF #ASTEROID #STRIKE: Yesterday, NASA's DART spacecraft hit asteroid Dimorphos--an incredible, dramatic bullseye 11 million kilometers from Earth. Surprising even NASA, ground-based telescopes had no trouble seeing the impact. Astronomers with the Asteroid Terrestrial-impact Last Alert System (ATLAS) in Hawaii recorded a bright cloud of debris:

This was the result of the 1,340-pound spacecraft plunging into Dimorphos at 14,000 mph. Most of the debris is probably asteroid dust, but some of DART may be in there, too. A similar video was recorded by the 1-meter Lesedi telescope in South Africa.

Mission scientsts say DART hit the asteroid less than 17 meters off center. Think about that: 17 meters off at a distance of 11 million kilometers. NASA still has the right stuff.

Now that the dust has cleared, astronomers are monitoring #Dimorphos's #orbit to find out whether or not it has changed in response to the strike. Even a slight shift would prove that human tech can alter an asteroid's trajectory--a possible strategy for future Planetary Defense.
https://spaceweather.com/

2 Likes