Artemis II Mission Advances Toward Historic Moon Journey

# Planetary Science News Script

NASA's Artemis II lunar mission continues advancing toward its March launch window following critical testing this week. According to NASA's mission blog, engineers completed a confidence test on February 12th in which operators partially filled the Space Launch System core stage liquid hydrogen tank to assess newly replaced seals in the propellant fill area. The Adler Planetarium reports that NASA conducted a full wet dress rehearsal on February 2nd and 3rd, loading 700,000 gallons of liquid hydrogen and liquid oxygen aboard the SLS rocket for the first time. These tests represent crucial milestones as NASA prepares to send four astronauts on a journey around the Moon for the first time since Apollo 17 in 1972.

The Artemis II crew will travel aboard the Orion spacecraft named Integrity, venturing approximately 230,000 miles from Earth and 4,600 miles beyond the Moon's surface, making it the farthest humans have ever traveled. According to the Adler Planetarium, the crew includes Canadian astronaut Jeremy Hansen, who will serve as mission specialist and experience his first spaceflight after previously serving as capcom, the voice between mission control and astronauts in space. The outbound trip from Earth will last about four days as the spacecraft loops around the far side of the Moon.

While NASA continues eyeing March as the next potential launch opportunity, no confirmed launch date has been set pending completion of the wet dress rehearsal and data review. The Adler Planetarium indicates that if the mission cannot launch by March 10th at 11:48 PM Central Standard Time, the next available launch windows occur in April on the 1st, 3rd, 4th, 5th, 6th, and 30th. These particular dates ensure that Earth and the Moon are properly positioned in space for Integrity to reach its intended destination.

Beyond lunar exploration, NASA announced new Earth system missions that will support future planetary science endeavors. NASA's selection of the STRIVE and EDGE missions will provide enhanced data on atmospheric conditions and surface topography, supporting longer-range weather forecasts and advancing understanding of extreme environments both on Earth and across the solar system. These missions are designed to assist in ensuring astronaut and spacecraft safety as NASA returns to the Moon through the Artemis campaign and prepares for eventual journeys to Mars and beyond.

Current planetary observation opportunities abound this month as well, with Saturn descending toward the horizon while Venus and Mercury climb upward in the southwestern sky. Jupiter remains high in the night sky, and the distant planets Uranus and Neptune are visible with binoculars or telescopes, creating what NASA describes as a planetary parade across February's night skies.

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