5Upper IntermediateGeneralScience

NASA Gets Ready to Move Its Biggest Rocket Stage Yet

NASA is preparing to roll out the largest section of its powerful Space Launch System rocket for the Artemis III mission. The event, scheduled for April 20, marks a major step toward sending astronauts back toward the Moon. This comes just days after the successful return of the Artemis II crew.

2 min readLevel 5April 15, 2026

By Flalingo Editorial Team

Vocabulary

Study these words before reading the article. Click the audio button to hear pronunciation.

rollout

/ˈroʊlaʊt/

noun

The act of moving a large vehicle or machine out of a building for the first time, or the public introduction of something new

“The rollout of the new spacecraft attracted hundreds of journalists and photographers.”

milestone

/ˈmaɪlstoʊn/

noun

An important event or achievement that marks progress toward a larger goal

“Graduating from university was a major milestone in her life.”

thrust

/θrʌst/

noun

The powerful forward force produced by an engine, especially a rocket engine

“The engines produced enough thrust to lift the heavy rocket off the ground.”

revised

/rɪˈvaɪzd/

adjective

Changed or updated, usually to improve something or correct earlier plans

“The company released a revised schedule after the original plan proved too ambitious.”

ambitious

/æmˈbɪʃəs/

adjective

Requiring great effort, skill, or determination to achieve; very challenging

“The government announced an ambitious plan to reduce pollution by fifty percent.”

momentum

/moʊˈmɛntəm/

noun

The force or speed that keeps something moving forward or growing stronger over time

“The team gained momentum after winning three games in a row.”

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Article

Click on any underlined word to see its definition. Highlighted words are from the vocabulary section.

NASA is moving forward with its next big space mission. On April 20, the agency will roll out the largest section of its Space Launch System rocket. This massive piece of hardware was built at NASA's Michoud Assembly Facility in New Orleans. It will be loaded onto a special barge called Pegasus and shipped to Florida. The rollout is a key milestone for the upcoming Artemis III mission.

The section being moved contains the liquid hydrogen and oxygen tanks. It makes up about four-fifths of the rocket's core stage. Once it arrives at Kennedy Space Center, teams will complete the final assembly. The rocket's four powerful RS-25 engines will provide over two million pounds of thrust. These engines are scheduled to arrive from Mississippi no later than July 2026.

Artemis III is the second crewed mission in NASA's Artemis program. It is currently scheduled for launch in mid-2027. However, the mission plan has been revised significantly since it was first announced. Instead of landing on the Moon, astronauts will test docking with commercial spacecraft. This will prepare NASA for Artemis IV, which aims to land humans on the Moon.

This rollout event comes right after the historic Artemis II mission concluded on April 10. That mission sent four astronauts on a flyby around the Moon for the first time since 1972. NASA described Artemis II as a successful test flight. The agency is now building momentum toward even more ambitious goals. If everything goes as planned, humans would walk on the Moon again by 2028.

Comprehension Quiz

Test your understanding of the article with these multiple-choice questions.

1
When is NASA planning to roll out the Artemis III rocket section?
2
What will the Artemis III mission do instead of landing on the Moon?
3
How much thrust will the four RS-25 engines produce?
4
Which mission is expected to land humans on the Moon?
5
Where was the rocket section built?

Discussion

Answer these comprehension questions about the article.

1
What is NASA planning to roll out on April 20, and where was it built?
2
How will the rocket section be transported from New Orleans to Florida?
3
What has changed about the Artemis III mission compared to the original plan?
4
When did the Artemis II mission conclude, and what did it accomplish?
5
Why is the Artemis III mission important for future Moon landings?

Further Discussion

Share your opinions on these open-ended questions.

1
Would you like to watch a rocket launch in person? Why or why not?
2
Do you think it is important for humans to return to the Moon? What are the benefits?
3
If you could travel to space, where would you want to go and what would you do?
4
How do you feel about governments spending billions of dollars on space exploration?
5
What do you think life on the Moon might look like for future astronauts?