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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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Portal Space Systems gets its first payload into orbit

SpaceX night launch
A SpaceX Falcon 9 rocket sends more than 100 payloads into orbit from Vandenberg Space Force Base in California. (SpaceX Photo)

Bothell, Wash.-based Portal Space Systems has made its first foray into Earth orbit, in the form of a piggyback payload that will test technologies for highly maneuverable space vehicles.

The instrument package, which is about the size of a tissue box, was one of 119 payloads sent into orbit at 4:02 a.m. PT today from Vandenberg Space Force Base in California for SpaceX’s Transporter-16 satellite rideshare mission. Portal’s “Mini-Nova” payload was attached to Momentus’ Vigoride-7 orbital service vehicle for the ride on a SpaceX Falcon 9 rocket.

Minutes after launch, the Falcon 9’s first-stage booster landed autonomously on a drone ship that was stationed in the Pacific. Meanwhile, the second stage proceeded to orbit and deployed Vigoride-7 and other spacecraft.

“I’ve said for a long time that a company only really becomes a space company once it gets to space, and with last night’s launch out of Vandenberg, that’s now true for Portal,” the company’s co-founder and CEO, Jeff Thornburg, said in a LinkedIn post.

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Universe Today

Two space telescopes see Saturn in a different light

Views of Saturn captured by JWST (left) and Hubble (right).
NASA's James Webb Space Telescope acquired the infrared view of Saturn at left on Nov. 29, 2024. The Hubble Space Telescope's corresponding visible-light view, at right, was captured on Aug. 22, 2024. Credits: NASA, ESA, CSA, STScI, Amy Simon (NASA-GSFC), Michael Wong (UC Berkeley); Image Processing: Joseph DePasquale (STScI)

NASA is serving up a double scoop of delicious Saturn imagery in two flavors — near-infrared and visible light. The subtle differences between the James Webb Space Telescope’s infrared view and the Hubble Space Telescope’s visible-light view can help scientists dig deeper into the workings of the ringed planet’s atmosphere.

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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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Blue Origin jumps into the data center space race

Image: Satellite web
An artist’s conception shows a constellation of satellites in orbit. (Credit: OneWeb)

Jeff Bezos’ Blue Origin space venture is asking the Federal Communications Commission for authority to send up to 51,600 data center satellites into low Earth orbit, signaling its entry into an increasingly crowded space race.

The proposed constellation, dubbed Project Sunrise, would complement Blue Origin’s previously announced plans for a 5,408-satellite TeraWave constellation. TeraWave would provide ultra-high-speed connectivity for Project Sunrise’s satellites — and for terrestrial data centers, large-scale enterprises and government customers as well.

Once again, Bezos is competing with Elon Musk’s SpaceX, which is seeking the FCC’s approval for a constellation of data centers that could amount to a million satellites. And SpaceX has already taken notice. So has Redmond, Wash.-based Starcloud, which is working on its own plans for a data center network that could call for tens of thousands of satellites.

Tech companies are becoming increasingly interested in fielding orbital data centers because such networks could bypass the power and cooling constraints facing Earth-based AI data centers. Last October, Bezos said at a tech conference in Italy that orbital data centers would be the “next step” in a transition from Earth-based to space-based industry. “We will be able to beat the cost of terrestrial data centers in space in the next couple of decades,” he said.

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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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Portal teams up with Paladin for orbital trash disposal

Illustration: Triton-equipped Starburst and Supernova spacecraft in orbit.
An artist's conception shows Portal Space Systems' Starburst spacecraft at left and its larger Supernova platform in the distance at right, both outfitted with Paladin Space's Triton payload for orbital debris tracking and removal. (Portal Space Systems Illustration)

Bothell, Wash.-based Portal Space Systems is partnering with an Australian venture called Paladin Space on a commercial service that would round up and dispose of potentially dangerous orbital debris.

The concept — known as Debris Removal as a Service, or DRAAS — is meant to address one of the most pernicious problems facing spacecraft operators: how to dodge tens of thousands of pieces of space junk that are zipping through Earth orbit.

Since its founding in 2021, Portal has been focusing on the development of maneuverable orbital vehicles that could rendezvous with other satellites, either for servicing or for disposal. Its flagship is the Supernova in-space mobility platform, which will be equipped with an innovative solar thermal propulsion system. There’ll also be a smaller version of the spacecraft, called Starburst.

Starburst-1 is due for launch as early as this year, and Supernova is scheduled to make its debut in 2027.

Meanwhile, Paladin Space has been working on a reusable payload called Triton, which is designed to track and capture tumbling pieces of orbital debris that are less than 1 meter (3 feet) in size. That small-to-medium size category accounts for most of the debris that’s being tracked in orbit.

“Triton is built to remove dozens of those objects in a single mission, which fundamentally changes the cost structure of debris remediation and provides the greatest benefit to satellite operators,” Paladin CEO Harrison Box said today in a news release.

The Portal-Paladin partnership calls for installing Triton hardware on Starburst spacecraft. Portal’s orbital platform would go out in search of space junk, and Paladin’s payload would grab the debris. When Triton’s trash bin is full, it would be dropped off for safe disposal while the spacecraft remains in orbit for continued servicing.

The companies are targeting an initial deployment in 2027, focusing on heavily trafficked bands of low Earth orbit. Future missions may use Supernova’s added capabilities to service a wider variety of orbits.

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Universe Today

CERN adds a new particle to subatomic menagerie

Artist's graphical conception of Xi-cc-plus particle
An artist’s impression shows the newly discovered subatomic particle, with two charm quarks and one down quark. (Credit: CERN)

The Large Hadron Collider’s subatomic discoveries didn’t stop with the Higgs boson: This week, scientists at Europe’s CERN research center announced that the collider’s LHCb experiment has detected a doubly charmed particle that’s like a proton, but four times as weighty.

The particle is known as the Ξcc⁺, or “Xi-cc-plus.” It flashes in and out of existence in less than the blink of an eye, but just knowing that it exists — and knowing how massive it is — could give physicists a more solid sense of how matter is put together.

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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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