#asteroid

spektrum@anonsys.net

Massimo Sandal denkt differenziert über das Aussterben von Arten und die Versuche nach, einige von ihnen zurückzuholen. Eine klare Position bezieht er jedoch nicht. Eine Rezension

Massimo Sandal denkt differenziert über das Aussterben von Arten und die Versuche nach, einige von ihnen zurückzuholen. Eine Rezension (Rezension zu Die Melancholie des Mammuts von Massimo Sandal)#Biodiversität #Archäologie #Artensterben #Artenvielfalt #Aussterben #De-extinction #Evolution #Geoengineering #Paläontologie #Mammut #Riesenechsen #Pleistozän #Asteroid #Dinosaurier #ausgestorbeneArten #Erdgeschichte #Biosphäre #Anthropozän #Genetik #Biologie #ErdeUmwelt
»Die Melancholie des Mammuts«: »De-extinction«: ausgerottet, um zurückzukehren?

nowisthetime@pod.automat.click

‘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

devevo@diasp.org

#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