NASA is moving forward with preparations for the Artemis II mission, and the agency will soon provide live coverage of a major milestone. On Thursday, Feb. 19, NASA will broadcast its next wet dress rehearsal for the powerful Space Launch System rocket, also known as SLS. This important test is part of the final preparations before the Artemis II test flight.
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A wet dress rehearsal is a full practice countdown before launch day. During this test, teams fill the rocket with super-cold liquid fuel and carry out almost all the steps of a real launch. The rocket does not take off. The purpose is to confirm that all systems work properly under realistic conditions.
For this rehearsal, teams will count down to a simulated launch window opening at 8:30 p.m. EST on Feb. 19. The test may last up to four hours. Engineers and launch crews will monitor the rocket and ground equipment closely throughout the process.
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NASA will hold a news conference on Feb. 20 at 11 a.m. EST to share results from the test and explain what was learned. The Artemis II wet dress rehearsal is an important part of the Artemis program, which plans to return astronauts to the Moon and support future deep space missions.
How to Watch NASA’s Wet Dress Rehearsal Live
NASA is making it easy for people around the world to follow the Artemis II wet dress rehearsal. The agency will stream the news conference live on its official YouTube channel. This allows viewers to watch updates directly from NASA.
In addition, NASA continues to provide a 24/7 live stream showing the rocket at the launch pad. This camera feed gives viewers a real-time look at the Space Launch System as it stands ready for testing.
On fueling day, NASA will also offer a separate live stream focused specifically on wet dress rehearsal activities. This special stream will capture the key moments as teams load propellant into the rocket and move through the countdown process.
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For those who prefer reading updates, NASA will post real-time blog entries throughout the fueling test. These posts will explain what is happening step by step in clear language.
NASA encourages viewers to look for individual streams for each event on YouTube. The agency also shares information across multiple online platforms and social media channels, making it easy for anyone to follow along.
Media members who were previously credentialed for launch activities may attend the news conference in person. Journalists who want to participate virtually are required to contact the newsroom at NASA’s Kennedy Space Center in Florida at least one hour before the news conference begins.
This open access reflects NASA’s goal of keeping the public informed about major milestones in the Artemis II mission.
Why the Rehearsal Matters
The Artemis II wet dress rehearsal is the second major fueling test after an earlier rehearsal ended on Feb. 3. Each test helps NASA confirm that both the rocket and ground systems are ready for flight.
During the rehearsal, teams load the Space Launch System rocket with liquid hydrogen and liquid oxygen. These fuels are kept at extremely cold temperatures and must be handled with great care. Engineers carefully monitor every step so they can identify and fix any issues before launch day.
The Space Launch System is NASA’s most powerful rocket. It is built to carry astronauts beyond low Earth orbit. For Artemis II, it will send a crew on a mission around the Moon.
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The rehearsal allows engineers to test fuel lines, valves, computers, communication systems, and emergency procedures. By simulating real launch conditions, NASA reduces risk and improves safety.
Although no astronauts are on board during the test, the rehearsal is a major milestone. It brings NASA one step closer to the Artemis II test flight and future deep space missions.
