The SLS wet dress rehearsal is the rocket's last major hurdle before launch.

NASA still plans to conduct plenty of tests involving the suit, including parabolic flight, which can simulate the partial gravity of the Moon’s surface. The agency has already put the suit through its paces underwater at NASA’s Neutral Buoyancy Lab.

History recalls the names of Borman, Lovell, and Anders; of Apollo 11’s Neil Armstrong, Michael Collins, and Buzz Aldrin; of Apollo 13’s Lovell, Jack Swigert, and Fred Haise. It may soon recall, as well, Artemis II’s Reid Wiseman, Victor Glover, Christina Koch, and Jeremy Hansen.

"What makes the event even more extraordinary is that it did not involve a single volcano, but multiple active sources."

Today, there aren’t just two countries competing to get to the Moon. More countries have space programs, and private industry plays a larger role.