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Artemis 2’s moon crew sets a cosmic distance record

Artemis 2 image of moon with far-side regions on left side
This Artemis 2 view of the moon, taken during the Orion space capsule's approach, highlights a large crater known as Orientale Basin at lower left. Everything to the left of the crater is part of the moon's far side, the hemisphere that is not visible from Earth. (NASA Photo)

Four astronauts today became the first humans to make a trip around the moon since the Apollo era — and added new pages to history books for the Artemis era.

The Artemis 2 crew reached a maximum distance of 252,756 miles from Earth, surpassing the distance record for human travel that was set during the Apollo 13 mission in 1970 by more than 4,000 miles.

NASA astronaut Christina Koch marked the occasion in a radio transmission from NASA’s Orion space capsule, named Integrity. “We most importantly choose this moment to challenge this generation and the next to make sure this record is not long-lived,” she said.

Koch made history as the first woman to travel beyond Earth orbit. One of her crewmates, NASA pilot Victor Glover, is the first Black astronaut to take a moon trip, and Canadian astronaut Jeremy Hansen is the first non-U.S. astronaut to do so.

The main purpose of the 10-day Artemis 2 mission is to serve as an initial crewed test flight for the Orion spacecraft, which traced a similar round-the-moon course during the uncrewed Artemis 1 mission in 2022. A successful Artemis 2 mission will prepare the way for a lunar lander test flight in Earth orbit as early as next year, potentially followed in 2028 by the first crewed moon landing since Apollo.

Seattle-area tech workers have played a role in getting Orion off the ground — and bringing it back home. L3Harris’ Aerojet Rocketdyne facility in Redmond worked on the spacecraft’s main engine and some of its thrusters, while Karman Space Systems’ Mukilteo facility provided mechanisms for Orion’s parachute deployment system and emergency hatch release system.

Artemis 2’s flight plan took advantage of orbital mechanics and a precisely timed firing of Orion’s main engine to send the astronauts on a free-return trip around the moon and back. The moon’s gravitational pull caused Orion to make a crucial U-turn around the far side, at a minimum distance of 4,067 miles from the lunar surface, and then slingshot back toward Earth.

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Cosmic Space

How to watch the Artemis crew fly around the moon

Moon centered in window of Orion spacecraft, surrounded by cabin hardware
The moon shines through one of the Orion spacecraft's windows on April 5. Click for a larger image. (NASA Photo)

It’s prime time for the Artemis 2 mission’s historic round-the-moon flyby, which includes setting a new distance record for human travel beyond Earth and laying eyes on a supersized solar eclipse.

The lunar encounter on April 6 will mark the first time astronauts have traveled to the moon since the Apollo 17 mission in 1972. They won’t be landing this time, but they will be getting a close look at features on the lunar far side that human eyes have never seen directly before.

Artemis 2’s Orion space capsule is on a slingshot trajectory that will take advantage of the moon’s gravitational field to execute a U-turn and head back toward Earth without the need for a major engine burn.

The show starts at 1 p.m. ET (10 a.m. PT) on NASA+, YouTube and other streaming video services.

“I do anticipate a big bump … as we have this really key moment in time where we’re flying around,” Lori Glaze, acting associate administrator for NASA’s Exploration Systems Development Mission Directorate, said today. “We’re breaking the Apollo record. We’re going to have an eclipse, we’re going to have all of these amazing observations. I really think we’re going to get another big spike. I’m really looking forward to that.”

But it will take hours for the flyby to run its course. It will take hours more for the crew to download the imagery they capture, and it’s likely to take days longer to share all the fruits of the six-hour flyby sequence with the public. The sense of drama won’t be as high as it was for, say, the “Apollo 13” movie. But Kelsey Young, Artemis 2’s lunar science lead, says it will be an important event nonetheless.

“This is a unifying moment for all of us, and we’ve put our best foot forward into preparing this mission for success,” she said. “We know what it’s going to mean to connect to the moon in that way.”

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Cosmic Space

Moon-bound astronauts capture glorious views of Earth

Full-disk view of Earth
This full-disk view of Earth was taken by NASA astronaut Reid Wiseman from one of the Orion spacecraft's windows on April 2. (NASA Photo)

NASA’s Artemis 2 astronauts are sharing perspectives of Earth that haven’t been seen by human eyes for more than 50 years — from a spaceship that’s traveling from our home planet to the moon.

Two days after the launch of the crew’s Orion space capsule, the first high-resolution photos looking back at Earth are hitting NASA’s image repository. “You guys look great,” astronaut Christina Koch said.

Today’s star of the show is a blue-marble photo captured by mission commander Reid Wiseman after Orion completed its translunar injection burn and headed outward from Earth orbit on April 2. The faint greenish glint of auroras can be seen at upper right and lower left. The brighter glow of zodiacal light is visible at lower right.

“You could see the entire globe, from pole to pole,” Wiseman said during a news briefing. “You could see Africa, Europe, and if you looked really close, you could see the northern lights. It was the most spectacular moment, and it paused all four of us in our tracks.”

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Cosmic Space

Orion moonship fires up its engine to leave Earth behind

Orion thrusters and crescent Earth against the blackness of space
A webcam view from NASA's Orion space capsule shows its thrusters at left and a crescent Earth at right. (NASA Photo)

NASA’s Orion space capsule successfully fired its main engine today for a maneuver that sent the four astronauts of the Artemis 2 mission out of Earth orbit and onward to the moon.

The translunar injection burn lasted five minutes and 50 seconds, and committed the spacecraft to a course that will result in a lunar flyby and a gravity-assisted U-turn on April 6. “Looks like a good burn,” capsule communicator Chris Birch said at Mission Control in Houston.

The trajectory is designed so that the capsule, christened Integrity, will return to Earth on April 10 without requiring any further major engine firings. “From this point forward, the laws of orbital mechanics are going to carry our crew to the moon, around the far side and back to Earth,” said Lori Glaze, acting associate administrator for NASA’s Exploration Systems Development Mission Directorate.

After the burn, Canadian astronaut Jeremy Hansen paid tribute to the Artemis team. “We firmly felt the power of your perseverance during every second of that burn,” he told Mission Control. “Humanity has once again shown what we are capable of, and it’s your hopes for the future that carry us now on this journey around the moon.”

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Astronauts begin first trip to the moon in decades

SLS lifts off from Florida launch pad
NASA’s Space Launch System rises from its Florida launch pad, sending the Artemis 2 crew into orbit. (NASA via YouTube)

After years of postponements and close to $100 billion in spending, NASA has launched the first mission to send astronauts around the moon since Apollo 17 in 1972.

The 10-day Artemis 2 mission began today with the liftoff of NASA’s 322-foot-tall Space Launch System rocket from Launch Complex 39B at Kennedy Space Center in Florida at 6:35 p.m. ET (3:35 p.m. PT). NASA is streaming live coverage of the flight via YouTube and Amazon Prime.

During the last two hours of the countdown, engineers addressed concerns about the rocket’s flight termination system and instrumentation for a battery on the launch abort system. “Godspeed, Artemis 2,” launch director Charlie Blackwell-Thompson told the crew just before liftoff. “Let’s go!”

Artemis 2 is the first crewed test flight in a series leading up to a moon landing that’s currently scheduled for 2028. It follows Artemis 1, which sent a crewless Orion around the moon in 2022. This time, four astronauts are riding inside Orion: NASA mission commander Reid Wiseman, NASA astronauts Christina Koch and Victor Glover, and Canadian astronaut Jeremy Hansen.

“Great view,” Wiseman told Mission Control during the rocket’s ascent. “We have a beautiful moonrise, we’re headed right at it.”

Koch will be the first woman to go beyond Earth orbit. Similar firsts apply to Glover as a Black astronaut, and Hansen as a non-American astronaut.

Although Artemis 2’s astronauts won’t be landing on the lunar surface, they’ll follow a figure-8 trajectory that will send them 4,700 miles beyond the far side of the moon and make them the farthest-flung travelers in human history.

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Milestone moon mission gets a boost from the Northwest

Sen. Maria Cantwell and L3Harris' Brent Urke pointing to a model of Orion space vehicle at L3Harris' Redmond facility
Sen. Maria Cantwell, D-Wash., and Brent Urke, program manager for L3Harris’ facility in Redmond, Wash., check out a model of the Orion spaceship that’s due to take four astronauts around the moon as early as this week. Cantwell is pointing to the model’s set of eight R-4D thrusters. An actual R-4D thruster, manufactured in Redmond, is sitting on the table at far left. (GeekWire Photo / Alan Boyle)

NASA’s most powerful rocket is due to send four astronauts on a round-the-moon journey as early as this week, and although the launch team has to make sure everything goes right in Florida, the mission’s success will also depend on hardware that was built in the Seattle area.

During a visit to two of the contractors for NASA’s Artemis moon program, U.S. Sen. Maria Cantwell said that when it comes to spaceflight, it’s important to get the little things right.

“A lot of people think, ‘Oh, well, we know how to build big rockets,’ right?” the Washington state Democrat said at Karman Space & Defense’s manufacturing facility in Mukilteo, Wash. “But do we know how to separate payloads and return them, and do all of that? That’s what we’re doing here in Puget Sound. … I think that’s the untold story that people don’t understand.”

NASA’s big story will focus on the first humans to go from the Earth to the moon since the Apollo 17 mission in 1972. Artemis 2’s crew won’t land on the lunar surface during what’s expected to be a 10-day mission. But because their figure-8 route takes them 4,700 miles beyond the moon’s far side, they’ll set a new distance record for human travel beyond Earth.

The first opportunity for liftoff from NASA’s Kennedy Space Center in Florida is scheduled for 6:24 p.m. ET (3:24 p.m. PT) on April 1, with backup dates available through April 6. NASA plans to provide live video coverage of the countdown and launch via YouTube, starting at 12:50 p.m. ET (9:50 a.m. PT) on launch day.

This will be the second launch for NASA’s Space Launch System rocket, which sent an uncrewed Orion space capsule around the moon for the Artemis 1 test mission in 2022. The Artemis 2 crew — including NASA astronauts Reid Wiseman, Christina Koch, Victor Glover and Canadian astronaut Jeremy Hansen — will be the first people to ride an Orion into space.

If all goes according to plan, Artemis 2 will clear the way for NASA to test the lunar landers built by Elon Musk’s SpaceX and Jeff Bezos’ Blue Origin space ventures in 2027, then for Artemis 3 to put astronauts on the surface of the moon in 2028. And that’s just the start.

“Ultimately, Artemis is about returning to the moon and building a permanent moon base that can then be used for accelerating our travel to Mars,” Cantwell said.

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Universe Today

NASA pivots to moon base and nuclear Mars mission

Illustration: Space Reactor-1 approaching Mars
An artist's conception shows Space Reactor-1 Freedom approaching Mars. (NASA via YouTube)

NASA’s leaders today laid out an ambitious multibillion-dollar space exploration plan that calls for building a moon base over the next decade and launching a nuclear-powered probe to Mars by 2028.

The space agency is also pressing the pause button on its multibillion-dollar plan to create a moon-orbiting outpost known as the lunar Gateway, and on its plan for transitioning from the International Space Station to commercial outposts in low Earth orbit.

Instead, NASA says it aims to work with commercial partners to procure a government-owned Core Module for the ISS. That module would serve as the attachment point for commercial space modules that could eventually detach to become free-flying space stations.

Meanwhile, the Power and Propulsion Element that was designed for the Gateway would be repurposed for the Mars probe known as Space Reactor-1 Freedom. SR-1 Freedom would be powered by a nuclear electric propulsion system and drop off a payload capable of deploying three helicopters in the Martian atmosphere. Such a mission, known as Skyfall, builds on the success of NASA’s Ingenuity helicopter on Mars and parallels a concept proposed last year by AeroVironment.

NASA is aiming to launch SR-1 Freedom, land astronauts on the lunar surface with its Artemis 4 mission and start laying the groundwork for a moon base with Artemis 5 by the end of 2028, when President Donald Trump’s term in office comes to a close.

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Cosmic Space

NASA’s moon rocket returns to launch pad after tune-up

Nighttime rollout of SLS rocket on mobile launcher
NASA's Space Launch System rocket rolls out from the Vehicle Assembly Building in Florida. (NASA Photo)

It took longer than expected, but NASA’s Space Launch System rocket is back on its launch pad in preparation for sending four astronauts on a historic round-the-moon mission as early as next month.

The 322-foot-tall SLS rocket, topped by NASA’s Orion crew capsule, began rolling out from the Vehicle Assembly Building at Kennedy Space Center in Florida at 12:20 a.m. ET March 20 (9:20 p.m. PT March 19). The start of the trip was delayed by more than four hours due to concerns about high winds in the area.

NASA’s rocket and its massive mobile launcher made the 4-mile trek to Launch Complex 39B in 11 hours, traveling at a top speed of less than 1 mph. The trip required the use of a crawler-transporter — the same vehicle used for the Apollo and space shuttle programs, now upgraded for NASA’s Artemis moon program.

The Apollo connection is particularly fitting because this mission, known as Artemis 2, will mark the first time since Apollo 17 in 1972 that astronauts have been sent around the moon. No landing will be made this time around, but the crew is due to go about 4,700 miles beyond the moon’s orbit during their 10-day mission. That would set a new distance record for human spaceflight.

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Universe Today

Scientists find evidence of faraway worlds colliding

Illustration: Star with two planets colliding in orbit
An artist's conception shows a planetary collision around a star called Gaia20ehk. (Credit: Andy Tzanidakis / Univ. of Washington)

Astronomers say unusual readings from a star system 11,000 light-years away suggest that two of the planets circling the star crashed into each other, creating a huge, light-obscuring cloud of rocks and dust.

The analysis, laid out this week in a paper published by The Astrophysical Journal Letters, could provide new insights into the occasionally cataclysmic process that governs the evolution of planetary objects — including our own planet Earth and its moon.

“There are only a few other planetary collisions of any kind on record, and none that bear so many similarities to the impact that created the Earth and moon,” University of Washington graduate student Anastasios Tzanidakis, the study’s lead author, said in a news release. “If we can observe more moments like this elsewhere in the galaxy, it will teach us lots about the formation of our world.”

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GeekWire

A quick guide to the total lunar eclipse — and the weather

Three views of total lunar eclipse from March 14, 2025
A photo sequence shows the total lunar eclipse of March 14, 2025. (Sky & Telescope Photo / Edwin L. Aguirre and Imelda B. Joson).

Tonight’s full moon will turn into a red moon during the last total lunar eclipse we’ll be able to see for the next two years — but whether we’ll truly be able to see it with our own eyes depends on the weather. And that’s an iffy proposition for Pacific Northwest skywatchers.

The good news is that total lunar eclipses, unlike a total solar eclipse, can be seen from an entire hemisphere at a time. They occur when the orbital mechanics are just right for Earth to pass directly between the moon and the sun. For about an hour, Earth’s shadow blots out the sun’s rays, except for reddish wavelengths that are refracted by our planet’s atmosphere. That’s what lends the moon its blood-red color.

Tonight’s eclipse begins with a barely discernable penumbral phase at around 1:30 a.m. PT March 3, gets into its partial phase at 1:50 a.m. and enters totality at 3:04 a.m. The eclipse’s total phase ends at 4:03 a.m., and the partial phase winds down over the following hour or two.

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