How Can We Prevent Asteroid Collisions?

The video explores the threat of asteroids to Earth, highlighting their historical impacts, including mass extinctions. It discusses the frequency of asteroid collisions and the potential for future impacts. The video introduces NASA's DART mission, which aims to redirect asteroids by impacting them with spacecraft, and ESA's Hera mission, which will analyze the results. The importance of detecting and preventing asteroid threats is emphasized, with a focus on current and future technologies for planetary defense.

What significant event is believed to have been caused by an asteroid impact 66 million years ago?

• The birth of Earth

• The creation of oceans

• The extinction of dinosaurs

• The formation of the moon

How often do small objects collide with Earth compared to large objects?

• Small objects collide less frequently

• Both collide at the same frequency

• Large objects collide more frequently

• Small objects collide more frequently

What is the estimated number of meteors that hit Earth's atmosphere daily?

• 50,000,000

• 1,000,000

• 10,000,000

• 25,000,000

What is the primary goal of tracking objects in space?

• To study the sun

• To prevent potential asteroid impacts

• To find new planets

• To explore black holes

What is the main objective of NASA's DART mission?

• To explore Mars

• To redirect an asteroid

• To study the moon

• To capture a comet

What is the size of the DART spacecraft?

• The size of a house

• The size of a car

• The size of a refrigerator

• The size of a bus

What instrument does DART use for navigation and targeting?

• SONAR

• RADAR

• LIDAR

• DRACO

What is the purpose of the Lithia Cube on the DART mission?

• To power the spacecraft

• To communicate with Earth

• To capture images and data

• To land on the asteroid

What is the main focus of ESA's Hera mission?

• To land on Mars

• To capture a comet

• To explore Jupiter

• To study the impact crater

When is ESA's Hera mission expected to reach the Didymos system?

• 2028

• 2024

• 2026

• 2022