Artemis II: The Translunar Injection Burn

What is the primary purpose of the Translunar Injection (TLI) burn?

• To launch the Orion spacecraft from the surface of the Earth

• To transition the spacecraft from Earth orbit to a path toward the Moon

• To slow the spacecraft down for a landing on the lunar surface

• To test the emergency escape systems of the European Service Module

Which component of the Orion spacecraft is responsible for performing the TLI burn?

• The Heat Shield

• The Lunar Lander

• The European Service Module (ESM)

• The Solid Rocket Boosters

To what speed must Orion accelerate during the TLI burn to break free from Earth's orbit?

• 17,500 mph

• Over 24,000 mph

• 50,000 mph

• 10,000 mph

How does the shape of Orion's orbit change after the TLI maneuver?

• It changes from a square orbit to a circular orbit

• It remains in a stable circular orbit

• It changes from a circular orbit to an elliptical trajectory

• It becomes a straight line directly to the Moon

What is a "free-return trajectory"?

• A path that allows the spacecraft to return to Earth naturally after looping the Moon

• A mission path where the fuel is provided for free by international partners

• A trajectory that requires constant engine firing to maintain

• A maneuver used only in case of a total system failure during launch

Why is the TLI burn described as a "point of no easy return"?

• The astronauts cannot breathe once the burn starts

• The spacecraft is committed to the journey toward the Moon once it is completed

• The engines are discarded immediately after the burn

• The Earth's gravity completely stops pulling on the spacecraft

What could happen if the TLI burn is executed for too long?

• The spacecraft would fall back to Earth immediately

• The spacecraft could overshoot the Moon

• The spacecraft would enter a permanent circular orbit around the Sun

• The engines would freeze due to deep space temperatures

What physical sensation will the astronauts experience during the TLI burn?

• Complete weightlessness

• A steady push of acceleration

• Rapid spinning and dizziness

• Extreme cold temperatures

What happens during the phase immediately following the TLI burn?

• Orion begins a multi-day coast phase toward the Moon

• Orion immediately lands on the lunar surface

• The crew performs a space walk to check the hull

• The spacecraft re-enters the Earth's atmosphere

In the ball-throwing analogy, what represents the TLI burn?

• A gentle toss that keeps the ball close

• Dropping the ball on the ground

• A powerful throw that sends the ball far away

• Catching the ball before it hits the ground