Answer and Explanation:
The Cretaceous–Paleogene extinction, which occurred around 66 million years ago, is defined as a mass extinction that wiped out around three-quarters of species on Earth.
Among the organisms that disappeared during this event, we find mammals, birds, fish, sharks, pterosaurs, birds, reptiles, insects, and some plant species.
This event is marked by the presence of a sediment layer known as the K-Ph boundary which showed important levels of iridium, an element that is abundant in craters. Therefore, after its discovery, scientists hypothesize this extinction occurred due to the impact of the giant Chicxulub crater which changed the conditions of the atmosphere.
Answer:
Scientists would most likely want to forecast space weather in order to know if it is safe for not only to lift off into outer space, but to be able to help astronauts in any case of emergency if something were to happen in the future.
Such as debris of small rocks that could pass by, so then astronauts would have to stay in the shuttle. To be protected from it.
In any case, scientists want to forecast the weather in outer space in order to protect astronauts, from any incoming dangers.
Answer: James Watson, Francis Crick, and Rosalind Franklin (these are just 3)
Explanation:
In 1952, Watson and Crick took the first X-ray picture of DNA. Created by Rosalind Franklin, she used a technique called X-ray Crystallography, that is how they discovered the helical structure of DNA
