Today, four astronauts launched from Kennedy Space Center on a 10-day mission that will carry them farther from Earth than any human being has ever traveled.
The crew of NASA’s Artemis II — Reid Wiseman, Christina Koch, Victor Glover, and Canadian astronaut Jeremy Hansen — are the first people to launch toward the Moon since Apollo 17 in 1972, more than 50 years ago.
They are not landing on the lunar surface.
They are not even going into orbit around it.
But what they are doing may be the most important human spaceflight mission since the original Moon landings — and the most record-breaking one in over half a century.
The crew is expected to surpass the record for the farthest distance humans have ever traveled from Earth, previously set by Apollo 13 at 248,655 miles.
That record has stood for 56 years.
And here is the part that makes this story genuinely extraordinary.
The Apollo 13 crew set that record not by ambition, but by disaster — after an oxygen tank explosion forced them onto an emergency free-return trajectory around the Moon in 1970.
Nobody planned it.
It was survival, not exploration.
Now, intentionally and with four crew members aboard, the Orion spacecraft’s furthest point of travel will be 250,000 miles from Earth, including roughly 4,600 miles beyond the Moon as it flies a loop around the far side.
This is the Artemis II mission.
And it launched today, April 1, 2026.
The Mission NASA Has Been Building Toward for Years
Artemis II builds on the success of the uncrewed Artemis I in 2022, and will demonstrate a broad range of capabilities needed for deep space missions.
The 2022 Artemis I flight was uncrewed by design.
It was a proof-of-concept — sending the Orion capsule around the Moon and back to confirm that the Space Launch System rocket and the spacecraft’s systems could survive the journey without a human crew aboard.
They did.
But data from mannequins and sensors can only tell engineers so much.
The next step required real people, real biological responses, and real-time decision-making in an environment where no human has been since 1972.
Artemis II is also a major milestone in a new space race with China, which plans to put its own astronauts on the lunar surface by 2030.
NASA hopes to win the race by launching one and possibly two Artemis landing missions in 2028.
Before that can happen, the agency needs to prove its hardware works with humans aboard, in deep space, far beyond the protection of Earth’s magnetic field.
That is exactly what Artemis II is designed to do.
The Artemis program is not just a return to the Moon for its own sake.
The long-term plan involves establishing a new space station in lunar orbit and eventually a habitable Artemis base camp on the surface of the Moon’s south pole to support deeper space exploration — and ultimately, crewed missions to Mars.
Every element of what happens over the next ten days feeds directly into that larger plan.
A Crew That Makes History Before They Even Land Anywhere
The four astronauts aboard Orion are not just testing spacecraft systems.
They are each, individually, making history.
Christina Koch will become the first woman to venture into deep space, and Victor Glover will become the first person of color to do the same.
Koch already holds the record for the longest single spaceflight by a woman, at 328 days.
She spent nearly a year aboard the International Space Station, conducting spacewalks and biomedical research before returning to Earth in 2020.
Now she is heading somewhere no woman has ever been.
Victor Glover is a Navy fighter pilot and test pilot who flew to the International Space Station in 2020 aboard a SpaceX Crew Dragon.
He will be the first person of color to travel to the vicinity of the Moon.
Jeremy Hansen will become the first non-American citizen to travel beyond low Earth orbit and to the Moon’s vicinity, and Reid Wiseman will become the oldest person to leave low Earth orbit.
Hansen is a Canadian fighter pilot who joined the Canadian Space Agency astronaut corps in 2009.
He has waited almost two decades for a mission like this.
Lisa Campbell, the president of the Canadian Space Agency, said the partnership between the two countries makes them stronger, adding that they can go faster and further together.
Together, this crew represents something the Artemis program has been explicit about: the next era of space exploration will look different from the last one.
Apollo 13 astronaut Fred Haise, now 92, reportedly told Christina Koch directly: “I heard you’re going to break our record.”
The man whose accidental near-death set the benchmark is now watching four people deliberately surpass it.
That is a remarkable thing to witness.
What Actually Happens Over 10 Days in Space
The mission timeline is dense, deliberate, and packed with firsts.
The astronauts will spend the first day of the mission orbiting Earth and testing Orion’s life-support systems, which help regulate temperature, air quality, drinking water, food, and waste management.
These systems have never been tested with humans aboard.
Getting that data is not optional.
It is the entire point of this flight.
Commander Wiseman described the first day as a full systems verification at high altitude before committing to the journey.
The crew will orbit Earth for about 24 hours, checking whether the spacecraft can scrub carbon dioxide, maintain breathable air, manage water, and support basic human functions before pushing toward the Moon.
On the second day of the mission, the spacecraft’s main engines are expected to fire to put it on a path toward the Moon.
That six-minute engine firing will boost the ship’s velocity by about 900 mph — just enough to push it out of Earth’s orbit and begin the four-day coast to the Moon.
Days three and four will be spent rehearsing the tasks the crew will perform during the lunar flyby, practicing observations they need to record and checking trajectory correction burns.
The astronauts will also use the third day to perform safety demonstrations, including CPR procedures — important rehearsals given that no rescue mission could reach them at these distances.
Day five is when the spacecraft enters lunar space.
The crew is scheduled to circle the Moon around April 6, coming within about 6,000 miles of the lunar surface.
The astronauts will only have about three hours during Orion’s closest pass above the lunar surface to complete their survey, including a long list of observations they hope to record.
From the crew’s vantage point aboard the Orion capsule, the Moon will appear about the size of a basketball held at arm’s length.
Then comes the deepest point in the journey.
On flight day six, Orion will reach its farthest point from Earth as it sails roughly 5,000 miles beyond the Moon — surpassing Apollo 13’s distance record and making the Artemis II astronauts the most remote travelers in human history.
The capsule will then spend several days journeying back to Earth, before splashing down in the Pacific Ocean off the coast of San Diego around April 10.
But Here Is What Most People Get Wrong About This Mission
The common assumption is that a Moon mission that does not land is a lesser achievement — a dry run, a practice round, a mission that will be quickly overshadowed by the real thing.
That framing completely misses the point.
Traveling to the Moon means astronauts will go beyond Earth’s Van Allen belts, which protect humans from cosmic radiation and solar storms.
Astronauts aboard the International Space Station never leave the protection of Earth’s magnetic field.
This crew will.
And nobody has done that with humans since the final Apollo mission in 1972.
Fifty years ago, researchers could do little more than measure radiation exposure on a mission like this.
This time, the science is completely different.
Biometric devices will monitor the astronauts’ vitals under increased stresses from radiation, isolation, and even dormant viruses that can reactivate under spaceflight conditions.
A study called AVATAR will use organ-on-a-chip devices to study the effects of increased radiation and microgravity on human health.
These miniaturized organ models are engineered to replicate how human tissue responds to stress — giving researchers a window into what deep space does to the human body at the cellular level.
The mission will include multiple health studies to determine how radiation, microgravity, isolation, and other factors impact the astronauts’ physical health, minds, and behavior — information that is crucial for future lunar surface missions and for understanding human deep-space capabilities.
There is also the psychological dimension.
Isolation, communications delays, and the knowledge that no immediate rescue is possible all affect how the human brain and body perform.
Studying that — under real conditions, at real distances — is something no simulation on Earth can fully replicate.
In other words, this mission is not a stepping stone.
It is the foundation.
The Technology That Makes It All Possible
Standing 322 feet tall, the Space Launch System is described as the most powerful rocket in the world, using a core stage and twin strap-on boosters loaded with nearly 1 million gallons of super-cold liquid hydrogen and oxygen.
The Orion capsule that sits on top of it is a genuinely modern spacecraft in every meaningful sense.
Previous Apollo explorers had to manage hundreds of manual switches on lunar missions, but Orion’s computers are operated through just three display screens.
The living and working area inside the capsule is compact but functional.
The crew module is nearly 17 feet in diameter and just under 11 feet in length — the space where all four astronauts will work, eat, sleep, and observe the Moon and Earth from a distance few humans have ever seen.
Orion’s heat shield can withstand 5,000 degrees Fahrenheit.
It will need to.
NASA has confirmed that Orion’s reentry speed of approximately 25,000 miles per hour will exceed Apollo 10’s 1969 speed record of 24,791 miles per hour — making it the fastest crewed spacecraft return in history.
Re-entering Earth’s atmosphere at nearly 30 times the speed of sound, Orion will rely on its parachute system to slow from 25,000 mph to about 325 mph before splashing down.
This reentry profile was also revised after hard lessons learned from Artemis I.
Due to heat shield damage observed during the Artemis I uncrewed mission, NASA engineers eliminated the planned skip reentry in favor of a steeper, more direct entry profile for the crewed flight.
That is the kind of iterative engineering that makes deep space exploration survivable.
The program learns from every flight, and this flight will teach it more than any simulation ever could.
The International Science Riding Along on This Mission
The science aboard Artemis II is not limited to the four crew members.
In September 2024, NASA announced it would fly five CubeSats from international partners aboard the mission, selected from nations that are signatories to the Artemis Accords.
These small satellites are designed to advance global scientific and technological research while broadening international access to deep space.
Germany’s TACHELES satellite will examine the impact of space conditions on electrical components used in lunar vehicles, while Argentina’s ATENEA satellite will study radiation shielding, map the surrounding radiation environment, and test a long-distance communication system.
South Korea’s K-RadCube will study a dosimeter material designed to mimic human tissue to measure the effects of space radiation on the body.
The fact that multiple nations are sending science experiments on a crewed American Moon mission reflects just how much the Artemis program has reshaped international space cooperation.
This is not a solo mission.
It is, in a very real sense, humanity’s first collective push back into deep space.
What Comes Next If This Works
Artemis II is designed as a step toward a Moon landing in 2028, and eventually toward NASA’s goal of establishing a long-term presence on the Moon.
Next year, NASA plans for astronauts to rendezvous and dock in low-Earth orbit with new Moon landers being built by SpaceX and Blue Origin to test critical docking systems and operating procedures.
After that, the Artemis III mission aims to put boots on the lunar surface near the south pole — a region of the Moon that is scientifically fascinating because permanently shadowed craters there are believed to contain water ice.
Water ice means drinkable water.
It means rocket fuel.
It means the possibility of a sustained human presence without shipping every drop of water from Earth.
The long-term Artemis plan envisions a habitable base camp on the Moon’s south pole to support deeper space exploration — and ultimately, crewed missions to Mars.
All of it depends on what four astronauts accomplish over the next ten days.
That is not an exaggeration.
If Orion’s life-support systems fail validation, if the radiation data shows unacceptable health risks, if the reentry profile causes critical damage to the heat shield — any of those outcomes would delay or reshape everything that follows.
The mission is carrying more than four people.
It is carrying the entire roadmap.
The Weight of That Distance
There is something worth sitting with here.
The previous holder of the human distance record is Fred Haise, who nearly died on Apollo 13.
The spacecraft that carried him 248,655 miles from Earth was running on emergency power, losing oxygen, and had to use the Moon’s gravity just to get the crew home.
He did not choose to break that record.
Survival chose it for him.
Now, 56 years later, four astronauts launched into that same void — deliberately, with better technology, better medicine, a better spacecraft, and a clearer plan than anyone has had since the original Moon program.
The first crewed deep-space flight in over 50 years, Artemis II is expected to send the crew farther from Earth than any previous human mission.
They will not land on the Moon.
But they will be further from home than any human being has ever been — and they will come back.
As Dr. Emmanuel Urquieta, director of the University of Central Florida’s Center for Aerospace and Extreme Environments Medicine, put it: for the first time since Apollo 17, humans will travel beyond Earth’s magnetic field — and now we have the technology to thoroughly understand the health impact of that journey.
That understanding is what makes the next mission safer.
And the one after that.
This is how exploration works.
Not in single leaps, but in a chain of missions where each one teaches the next generation of travelers exactly what they need to know to go further.
Today, that chain extended further than it ever has before.
Follow the mission live at nasa.gov/mission/artemis-ii and watch real-time coverage on NASA+.
