Dinosaurs Bad Day Case Study

Words: 1025
Pages: 5

1. What happened on the "dinosaurs' bad day"? What was the effect of this?
On the “dinosaurs’ bad day” a chunk of rock 6 miles across, moving at about 50 times the speed of a rifle bullet, slammed into earth and released its energy all at once . This caused a mind-numbing explosion, with the effects of a crater 300km across, excavation of a vast amount of the Earth, fires all over the planet, dust thrown up which blocked the sun, and an overall extinction of about 75 percent of the Earth’s species.
2. Does an asteroid need to hit the Earth to do damage? Why or why not?
An asteroid does not need to hit the Earth to do damage. They can blow up above ground still cause harm to the Earth. For example, in 1908 an asteroid blew up several miles
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All the pieces are in place for such action, if the risk occurs. If we need to block an asteroid from hitting the Earth we know how to do so. There are astronomers with telescopes searching for them constantly. We have the technology to move an asteroid, which includes the ability to hit an asteroid out of its orbit and use a probe to more an asteroid into a different orbit. We have a space program that knows how to protect from such dangers and a potential asteroid hit.
Visit The Hubble Deep Field Academy
Follow through the activity and answer the following questions with at least one paragraph each. (You don't need to complete the log questions mentioned in the activity.)
1. How do scientists estimate the number of objects in the image that they receive from the Hubble Deep Field?
Scientists estimate the number of objects in the image that they receive from the Hubble Deep Field by dividing the photograph into equal sections, for example, 12 different sections. They then choose one section and count the number of objects in that section. After counting the objects in that section they multiple that number by the number of sections (for example the 12 sections from earlier) they divided the original photograph into, to estimate the number of overall objects in an image. If they image is divided more than once to count within a section, one must simply multiple by the divided sections a second