SkyTour Radio Presents: Life And Death On Earth
Sunday August 19th, 2018
In this week’s episode of Skytour Radio, we take a look at impacts on Earth, both past and present, and the adaptations Earth has had to undergo to survive.
We look at past mass extinction events, like in the Jurassic era where 96% of all life was destroyed and discuss what should happen if such an event was to repeat in present day.
We analyze how many asteroids hit our planet as well as the frequency of which they hit and explore the pros and cons of different ways to protect ourselves should a threat from above be detected.
It was formed by a large asteroid or comet about 10 to 15 kilometers (6.2 to 9.3 miles) in diameter striking the Earth.
The date of the impact coincides precisely with the Cretaceous–Paleogene boundary (K–Pg boundary), slightly less than 66 million years ago and a widely accepted theory is that worldwide climate disruption from the event was the cause of the Cretaceous–Paleogene extinction event, a mass extinction in which 75% of plant and animal species on Earth became extinct, including all non-avian dinosaurs.
Asteroid Impact Avoidance
Asteroid impact avoidance comprises a number of methods by which near-Earth objects (NEO) could be diverted, preventing destructive impact events. A sufficiently large impact by an asteroid or other NEOs would cause, depending on its impact location, massive tsunamis, multiple firestorms and an impact winter caused by the sunlight-blocking effect of placing large quantities of pulverized rock dust, and other debris, into the stratosphere.
Recent astronomical events—such as the Shoemaker-Levy 9 impacts on Jupiter and the 2013 Chelyabinsk meteor along with the growing number of objects on the Sentry Risk Table—have drawn renewed attention to such threats. NASA warns that the Earth is unprepared for such an event.
SkyTour Radio explores the Universe in a down to Earth manner explaining the science we know in fun and bite-sized terms. Science is for everyone and people shouldn’t require an advanced degree to understand as long as it is delivered in an easy to follow way. From Black Holes to Extraterrestrial Life, we will explore the Universe like never before. Join us to check out such things as how stars form, how they live and, how our fate is intertwined with theirs. On the extraterrestrial life front, we will be speaking to the UFO and science arena’s top researchers and bring UFOlogy into the 21st century.
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