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NASA hopes fuel leaks are fixed as it launches another countdown test for the Artemis II moonshot

News

NASA hopes fuel leaks are fixed as it launches another countdown test for the Artemis II moonshot
News

News

NASA hopes fuel leaks are fixed as it launches another countdown test for the Artemis II moonshot

2026-02-18 08:27 Last Updated At:08:40

CAPE CANAVERAL, Fla. (AP) — NASA began another practice launch countdown Tuesday for its first moonshot in decades with astronauts after making repairs to fix dangerous fuel leaks that already have bumped the flight into March.

The first fueling test was halted two weeks ago by the same kind of liquid hydrogen leaks that disrupted the Artemis program's first flight without anyone aboard three years ago.

Launch teams replaced a pair of seals and a clogged filter at the Kennedy Space Center pad where the giant moon rocket stands before starting the countdown clocks back up. The two-day test will culminate Thursday with the attempted fill-up of the rocket’s fuel tanks. The four Artemis II astronauts will monitor the crucial dress rehearsal from afar.

A successful, leak-free test is needed before NASA will set a launch date. The earliest the Space Launch System, or SLS, rocket could blast off is March 6. Officials had considered moving it up by three days, but said the extra time was needed to analyze the fueling test results.

The last time astronauts blasted off for the moon was in 1972 during NASA's Apollo program.

The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Department of Science Education and the Robert Wood Johnson Foundation. The AP is solely responsible for all content.

This photo provided by NASA shows a full moon shining over NASA’s Space Launch System and Orion spacecraft, atop the mobile launcher at Launch Pad 39B at the Kennedy Space Center in Florida, on Feb. 1, 2026. (Sam Lott/NASA via AP)

This photo provided by NASA shows a full moon shining over NASA’s Space Launch System and Orion spacecraft, atop the mobile launcher at Launch Pad 39B at the Kennedy Space Center in Florida, on Feb. 1, 2026. (Sam Lott/NASA via AP)

Muslims worldwide will begin daily fasting from dawn to sunset as Ramadan starts, marking a period of worship, reflection and charity. The holy month, the ninth in the Islamic lunar calendar, brings families together for meals to break the fast. Ramadan begins Wednesday or Thursday, varying by country due to differing moon sighting practices.

This is a photo gallery curated by AP photo editors.

A man walks past a neon light decoration with wording 'Ramadan Kareem' placed by local authorities in connection with upcoming Muslims holy fasting month of Ramadan, in Rawalpindi, Pakistan, Tuesday, Feb. 17, 2026. (AP Photo/Anjum Naveed)

A man walks past a neon light decoration with wording 'Ramadan Kareem' placed by local authorities in connection with upcoming Muslims holy fasting month of Ramadan, in Rawalpindi, Pakistan, Tuesday, Feb. 17, 2026. (AP Photo/Anjum Naveed)

Muslim worshippers perform evening Tarawih prayer on the first night of the holy fasting month of Ramadan at the Alkanz Mosque, which was damaged during the Israel–Hamas war, in Gaza City, Tuesday, Feb. 17, 2026. (AP Photo/Jehad Alshrafi)

Muslim worshippers perform evening Tarawih prayer on the first night of the holy fasting month of Ramadan at the Alkanz Mosque, which was damaged during the Israel–Hamas war, in Gaza City, Tuesday, Feb. 17, 2026. (AP Photo/Jehad Alshrafi)

People shop for decorations in preparation for the upcoming Muslim holy month of Ramadan at a store in Beirut, Lebanon, Monday, Feb. 16, 2026. (AP Photo/Bilal Hussein)

People shop for decorations in preparation for the upcoming Muslim holy month of Ramadan at a store in Beirut, Lebanon, Monday, Feb. 16, 2026. (AP Photo/Bilal Hussein)

A worker cleans an area of the historic Mahabat Khan mosque in preparation for the upcoming Muslim fasting month of Ramadan, in Peshawar, Pakistan, Monday, Feb. 16, 2026. (AP Photo/Muhammad Sajjad)

A worker cleans an area of the historic Mahabat Khan mosque in preparation for the upcoming Muslim fasting month of Ramadan, in Peshawar, Pakistan, Monday, Feb. 16, 2026. (AP Photo/Muhammad Sajjad)

Workers clean carpet at the historic Mahabat Khan mosque in preparation for the upcoming Muslim fasting month of Ramadan, in Peshawar, Pakistan, Monday, Feb. 16, 2026. (AP Photo/Muhammad Sajjad)

Workers clean carpet at the historic Mahabat Khan mosque in preparation for the upcoming Muslim fasting month of Ramadan, in Peshawar, Pakistan, Monday, Feb. 16, 2026. (AP Photo/Muhammad Sajjad)

Muslim worshippers perform evening Tarawih prayer on the first night of the holy fasting month of Ramadan at the Great Omari Mosque, which was damaged during the Israel–Hamas war, in Gaza City, Tuesday, Feb. 17, 2026. (AP Photo/Abdel Kareem Hana)

Muslim worshippers perform evening Tarawih prayer on the first night of the holy fasting month of Ramadan at the Great Omari Mosque, which was damaged during the Israel–Hamas war, in Gaza City, Tuesday, Feb. 17, 2026. (AP Photo/Abdel Kareem Hana)

People gather to sight the Ramadan crescent moon marking the beginning of the holy month of Ramadan at the foothills of Mount Qasioun near the Tomb of the Unknown Soldier in Damascus, Tuesday, Feb. 17, 2026. (AP Photo/Ghaith Alsayed)

People gather to sight the Ramadan crescent moon marking the beginning of the holy month of Ramadan at the foothills of Mount Qasioun near the Tomb of the Unknown Soldier in Damascus, Tuesday, Feb. 17, 2026. (AP Photo/Ghaith Alsayed)

People gather to sight the Ramadan crescent moon marking the beginning of the holy month of Ramadan at the foothills of Mount Qasioun near the Tomb of the Unknown Soldier in Damascus, Tuesday, Feb. 17, 2026. (AP Photo/Ghaith Alsayed)

People gather to sight the Ramadan crescent moon marking the beginning of the holy month of Ramadan at the foothills of Mount Qasioun near the Tomb of the Unknown Soldier in Damascus, Tuesday, Feb. 17, 2026. (AP Photo/Ghaith Alsayed)

A painter gives finish touches to an artwork as workers clean an area of the historic Mahabat Khan mosque in preparation for the upcoming Muslim fasting month of Ramadan, in Peshawar, Pakistan, Monday, Feb. 16, 2026. (AP Photo/Muhammad Sajjad)

A painter gives finish touches to an artwork as workers clean an area of the historic Mahabat Khan mosque in preparation for the upcoming Muslim fasting month of Ramadan, in Peshawar, Pakistan, Monday, Feb. 16, 2026. (AP Photo/Muhammad Sajjad)

Muslim worshippers perform the evening Tarawih prayers during the holy fasting month of Ramadan, next to the Dome of Rock shrine at the Al-Aqsa Mosque compound in Jerusalem's Old City, Tuesday, Feb. 17, 2026. (AP Photo/Mahmoud Illean)

Muslim worshippers perform the evening Tarawih prayers during the holy fasting month of Ramadan, next to the Dome of Rock shrine at the Al-Aqsa Mosque compound in Jerusalem's Old City, Tuesday, Feb. 17, 2026. (AP Photo/Mahmoud Illean)

People buy traditional lanterns in Sayyeda Zeinab market ahead of the upcoming Muslim fasting month of Ramadan, in Cairo, Egypt, Tuesday, Feb. 17, 2026. (AP Photo/Amr Nabil)

People buy traditional lanterns in Sayyeda Zeinab market ahead of the upcoming Muslim fasting month of Ramadan, in Cairo, Egypt, Tuesday, Feb. 17, 2026. (AP Photo/Amr Nabil)

A worker sets decorations in preparation for the upcoming Muslim holy month of Ramadan, in downtown Beirut, Lebanon, Tuesday, Feb. 17, 2026. (AP Photo/Hussein Malla)

A worker sets decorations in preparation for the upcoming Muslim holy month of Ramadan, in downtown Beirut, Lebanon, Tuesday, Feb. 17, 2026. (AP Photo/Hussein Malla)

A man sings traditional Ramadan chants as residents prepare for the upcoming Muslim holy month of Ramadan at the Al-Jazmatiya market in Damascus, Tuesday, Feb. 17, 2026. (AP Photo/Ghaith Alsayed)

A man sings traditional Ramadan chants as residents prepare for the upcoming Muslim holy month of Ramadan at the Al-Jazmatiya market in Damascus, Tuesday, Feb. 17, 2026. (AP Photo/Ghaith Alsayed)

Palestinians hang decorations beside the rubble of destroyed homes as they prepare for the holy month of Ramadan in Khan Younis, southern Gaza Strip, Sunday, Feb. 15, 2026. (AP Photo/Abdel Kareem Hana)

Palestinians hang decorations beside the rubble of destroyed homes as they prepare for the holy month of Ramadan in Khan Younis, southern Gaza Strip, Sunday, Feb. 15, 2026. (AP Photo/Abdel Kareem Hana)

A man tries on a traditional cap which will be used while praying during the Muslim fasting month of Ramadan, at a shop, in Peshawar, Pakistan, Monday, Feb. 16, 2026. (AP Photo/Muhammad Sajjad)

A man tries on a traditional cap which will be used while praying during the Muslim fasting month of Ramadan, at a shop, in Peshawar, Pakistan, Monday, Feb. 16, 2026. (AP Photo/Muhammad Sajjad)

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