Podcast
Questions and Answers
At what speed did the asteroid pass by Earth in 2021?
At what speed did the asteroid pass by Earth in 2021?
- About 50,000 miles per hour
- About 77,000 miles per hour (correct)
- About 100,000 miles per hour
- About 30,000 miles per hour
How wide was the asteroid that passed by Earth in 2021?
How wide was the asteroid that passed by Earth in 2021?
- About 1,000 feet wide
- About 4,000 feet wide
- About 3,000 feet wide
- About 2,230 feet wide (correct)
What happens to most asteroids that enter Earth's atmosphere?
What happens to most asteroids that enter Earth's atmosphere?
- They land safely on Earth's surface
- They burn up in it (correct)
- They travel back into space
- They explode in mid-air
What is the estimated number of years ago that a huge asteroid slammed into Earth?
What is the estimated number of years ago that a huge asteroid slammed into Earth?
What do scientists use to track big asteroids?
What do scientists use to track big asteroids?
According to NASA's Lindley Johnson, how far in advance will scientists spot large asteroids?
According to NASA's Lindley Johnson, how far in advance will scientists spot large asteroids?
What is believed to have killed the dinosaurs?
What is believed to have killed the dinosaurs?
What is the primary reason scientists track asteroids?
What is the primary reason scientists track asteroids?
What is a common fate of many asteroids that enter Earth's atmosphere?
What is a common fate of many asteroids that enter Earth's atmosphere?
What is the scale of the asteroid that passed by Earth in 2021?
What is the scale of the asteroid that passed by Earth in 2021?
What event in Earth's history is linked to a massive asteroid impact?
What event in Earth's history is linked to a massive asteroid impact?
What is the main benefit of tracking asteroids, according to Lindley Johnson?
What is the main benefit of tracking asteroids, according to Lindley Johnson?
How many years ago did a massive asteroid impact Earth, according to scientists?
How many years ago did a massive asteroid impact Earth, according to scientists?
What is the purpose of NASA's asteroid tracking efforts, according to the text?
What is the purpose of NASA's asteroid tracking efforts, according to the text?
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