Space Launch System

Latest about Space Launch System

Hydrogen leak derails Artemis II wet rehearsal, pushing launch date back by weeks

By Patrick Pester published

NASA has delayed the Artemis II launch until March at the earliest after engineers discovered hydrogen leaks during last night's wet dress rehearsal.

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Space Exploration

Artemis II simulated launch window opens tonight as NASA delays mission due to 'rare Arctic outbreak'

By Patrick Pester published

NASA's Artemis II simulated launch is scheduled for tonight after Arctic weather forced the mission to be delayed. The first crewed Artemis mega moon rocket could still leave Earth as early as this weekend.

Space Exploration

NASA is preparing for simulated launch of Artemis II mega moon rocket — and it could happen as early as Saturday

By Patrick Pester published

NASA has announced it will fuel the Artemis II rocket as part of a simulated launch that will take place as early as Saturday (Jan. 31).

Space Exploration

Artemis 2 mission update: Rollout imminent as NASA prepares first crewed Artemis mission to the moon

By Patrick Pester published

NASA's Artemis 2 rollout could be as early as this weekend as the space agency makes final preparations for its first crewed Artemis moon mission.

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Space Exploration
The crew of NASA’s Artemis II mission (left to right): NASA astronauts Christina Hammock Koch, Reid Wiseman (seated), Victor Glover, and Canadian Space Agency astronaut Jeremy Hansen.

Artemis Program: NASA's plan to send humans back to the moon

By Adam Mann last updated

Basic information about the Artemis program's Space Launch System and Orion capsule.

The Moon

Trump's 2026 budget would slash NASA funding by 24% and its workforce by nearly one third

By Mike Wall Partner Content Created With Space. published

The Trump administration's 2026 budget request cuts NASA funding by $6 billion, which would lead to the cancellation of Mars sample-return and other high-profile missions.

NASA's first Space Launch System core booster ignites its four main engines at the Stennis Space Center near Bay St. Louis, Mississippi on Jan. 16, 2020. Expected to last 8 minutes, the test lasted just over 1 minute.

Critical engine test for NASA's Space Launch System megarocket shuts down earlier than planned

By Amy Thompson last updated

NASA fired up the core stage of its massive new megarocket Saturday (Jan. 16) in a critical test that appeared to shut down early.

Space Exploration
Artemis I Space Launch System (SLS)_NASA/Glenn Benson

NASA's 'Mega moon rocket' test resumes. Why were so many details about it kept secret?

By Adam Mann last updated

Experts dismiss NASA's reasons for being secretive about wet dress rehearsal of its major moon rocket.

Space Exploration
The sunrise casts a warm glow around the Artemis I Space Launch System (SLS) and Orion spacecraft at Launch Pad 39B at NASA’s Kennedy Space Center in Florida on March 21.

NASA is counting down to the 'wet dress rehearsal' for its 'Mega Moon Rocket'

By Mindy Weisberger last updated

Critical prelaunch tests for the Artemis I moon mission, known as a "wet dress rehearsal," are scheduled to begin on April 1 and continue through April 4.

The Moon
The Space Launch System's engines wobbled dramatically during the static fire test, but did not trigger an abord. A small fire is visible in the upper right corner, where NASA says some tape ignited.

NASA tested its new moon rocket in Mississippi, and it only caught on fire a little bit

By Rafi Letzter published

NASA conducted its second major test of its powerful new moon rocket, the Space Launch System, and it was mostly a success.

Space Exploration
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