❌

Normal view

There are new articles available, click to refresh the page.
Before yesterdayArs Technica - All content

The Roman telescope has enough gas for 22 years, double NASA's expectations

15 September 2026 at 22:26

NASA's Nancy Grace Roman Space Telescope is gliding toward its distant observation post on a pinpoint trajectory so precise that engineers estimate the spacecraft's fuel load will last twice as long as their initial expectations, the space agency confirmed Monday.

The $4.3 billion observatory's designers originally planned to load enough propellant into Roman's four fuel tanks for a minimum lifetime of five years, plus a potential five-year mission extension. That was a conservative estimate. NASA officials knew an on-target launch and perfect execution of the observatory's first post-launch course correction maneuver would leave Roman with a hearty fuel reserve.

"As a result of exquisite planning by our orbital dynamics team, brilliant execution by the operations team, and a precise launch from SpaceX, Roman has fuel for at least 22 years of potential science operations," Jamie Dunn, center director at NASA's Goddard Space Flight Center, said in a press release.

Read full article

Comments

Β© SpaceX

For the first time, the US military confirms it has deployed weapons in orbit

15 September 2026 at 03:47

Air Force Secretary Troy Meink made the first public declaration Monday that the United States has placed "space control weapons" in orbit, an announcement that will surely reverberate in the power centers of Beijing and Moscow.

Space Force officials have previously expressed their interest in acquiring space-based weapons, and Pentagon leaders have become more open to discussing space warfare in recent years. Therefore, Meink's announcement Monday at the Air and Space Forces Association's annual Air, Space & Cyber Conference near Washington, DC, was not entirely unexpected.

β€œToday, we continue to ensure we remain ready to meet the challenges of evolving threats, wherever they exist. This is why the United States now has on-orbit space control weapons capable of defending the joint force against hostile adversary action,” Meink said in prepared remarks.

Read full article

Comments

Β© US Space Force/David Dozoretz

Some satellite companies still have an appetite for boutique launch services

11 September 2026 at 23:34

If you ask most satellite companies aside from SpaceX, they will tell you the world doesn't have enough capacity for launching payloads into orbit. This is despite the blistering launch cadence we've seen around the world in recent years, led by SpaceX's Falcon 9 rocket.

Customers in any sector will, of course, usually welcome competition. Theoretically, competition will lead to lower prices and allow the best to rise to the top. It seems like the customers buying launch services were right. SpaceX is dialing back its Falcon 9 launch program, and there is no certainty about when SpaceX's reusable next-generation super-heavy-lift rocket, Starship, will carry anything to orbit besides the company's own Starlink satellites.

So it's no surprise satellite operators are cheering the success of a new launch provider. This was especially the case a few days ago, when Germany's Isar Aerospace reached orbit for the first time with its Spectrum rocket. The launcher delivered a batch of CubeSats to low-Earth orbit from a spaceport in northern Norway, and Isar tasted success after its first test flight ended in failure last year.

Read full article

Comments

Β© Isar Aerospace

Could United Launch Alliance's money problems finally force its owners to sell?

11 September 2026 at 11:00

Pretty much every rocket company in the United States, save one, has embraced two fundamental tenets: reusability and diversification.

Most famously, SpaceX branched out from reusable rockets to pursue and dominate a growing spectrum of space services: cargo delivery, human spaceflight, satellite production, broadband, and, perhaps soon, orbital data centers and in-space manufacturing. Blue Origin is evolving from a pure rocket company into a satellite manufacturer, robotics developer, and, most recently, a potential competitor for SpaceX's Starlink network.

Rocket Lab used a different approach to diversify after achieving success with its small Electron launch vehicle. The company relocated its headquarters from New Zealand to Southern California, started building spacecraft and payloads, and then went on a spree of corporate acquisitions to expand into satellite communications and take on a new role as a merchant supplier of satellite components and sensors. It's now in a stage of advanced development of its partially reusable next-generation Neutron launch vehicle.

Read full article

Comments

Β© United Launch Alliance

Europe will go it alone on Venus mission after NASA yanks radar instrument

10 September 2026 at 19:09

The European Space Agency is moving "full steam ahead" with development of a robotic mission to Venus after NASA officials determined they were unlikely to fulfill a commitment to provide a US-built radar instrument for the spacecraft, the mission's project scientist said.

The European orbiter, named Envision, will map the Venusian surface at 10 times higher resolution than the last radar mission sent to Venus by NASA in the 1990s. The planet is enshrouded in a blanket of thick clouds of sulfuric acid, rendering its mysterious surface unseen by optical cameras in orbit. Radar is the most effective way to penetrate the clouds of Venus to reveal the terrain below, and scientists will use Envision to look for signs of active volcanism.

NASA and ESA signed a memorandum of understanding in 2024 outlining their partnership on Envision. NASA agreed to supply a US-made synthetic aperture radar instrument, Envision's primary means of mapping the surface of Venus, along with providing tracking and communications support through NASA's Deep Space Network. In exchange, ESA would include US researchers on Envision's science team. Europe would build the Envision spacecraft and the rest of its science instruments and provide the launch on an Ariane 6 rocket.

Read full article

Comments

Β© ESA/Paris Observatory/VR2Planets

German company becomes first in Europe to launch fully commercial orbital rocket

6 September 2026 at 11:55

Isar Aerospace, founded in 2018 by three students at a German university, successfully launched a privately developed rocket into low-Earth orbit Saturday from a Norwegian spaceport inside the Arctic Circle.

The two-stage rocket, named Spectrum, became the first fully commercial launch vehicle in Europe to reach orbit. With Saturday's success, Isar is the clear leader among a pack of several European launch startups vying to inject some competition into Europe's stagnant launch market.

Isar's 92-foot-tall (28-meter) Spectrum rocket lifted off at 4:12 pm EST (20:12 UTC) Saturday from AndΓΈya Spaceport in northern Norway, where it was 10:12 pm local time and the final bluish hues of daylight faded from the late summer sky. Seven minutes later, the rocket was in orbit.

Read full article

Comments

Β© Isar Aerospace

After 8 years, Europe's BepiColombo mission is on final approach to Mercury

4 September 2026 at 22:49

The BepiColombo mission cleared a major milestone this week in the final stretch of an eight-year interplanetary voyage to Mercury, the hard-to-reach, scorching hot iron world at the Solar System's innermost frontier.

The robotic science mission, with a price tag of nearly $2 billion, is led by the European Space Agency with contributions from Japan and the United States. Since its launch in 2018, BepiColombo has spiraled closer to the Sun using a combination of plasma propulsion and a series of flybys of Earth, Venus, and Mercury. The maneuvers changed the spacecraft's velocity and steered it toward a final encounter with Mercury later this year.

Next time it reaches Mercury, BepiColombo will be traveling at just the right speed for the planet's gravity to capture the spacecraft into orbit. Scientists working on interplanetary missions are accustomed to long waits for scientific payoffs. It took nearly 10 years for NASA's New Horizons spacecraft to travel from Earth to Pluto. It turns out traveling to fleet-footed Mercury and then entering orbit requires more energy, or delta-v, than sending a probe to fly by Pluto.

Read full article

Comments

Β© ESA/ATG medialab and NASA/JPL

Rocket Report: Engines installed for Artemis III; Long March 6C breakup in LEO

4 September 2026 at 12:48

Welcome to Edition 9.09 of the Rocket Report! This edition includes an update from Blue Origin on the groundbreaking of a new Payload Processing Facility in Florida. It has been about a month since the company offered any meaningful news on its heavy-lift New Glenn rocket, which remains grounded after an on-pad explosion at Cape Canaveral Space Force Station in May. The official line from Blue Origin is that the company is targeting a return to flight with New Glenn by the end of the year, but there's good reason for skepticism.

As always, we welcome reader submissions. If you don't want to miss an issue, please subscribe using the box below (the form will not appear on AMP-enabled versions of the site). Each report will include information on small-, medium-, and heavy-lift rockets, as well as a quick look ahead at the next three launches on the calendar.

Isar Aerospace is ready to try again. Isar Aerospace is about to make the next attempt to launch the Spectrum rocket into orbit, with a weeklong launch window set to open Friday at AndΓΈya Spaceport in Norway, the Norwegian Broadcasting Corporation (NRK) reports. The German launch company aims to deliver several small CubeSats to orbit with the two-stage Spectrum rocket. A test flight of the privately funded launcher failed shortly after liftoff last year, and Isar has attempted to launch the second Spectrum rocket several times since January, only to be thwarted by technical problems and the unavailability of the launch range in northern Norway.

Read full article

Comments

Β© NASA/Clayton Rougelot

Is Russia's rival to Starlink failing? Here's what we know.

2 September 2026 at 11:15

Russia's attempt to replicate SpaceX's Starlink satellite network seems to be moving as slowly as the front lines in eastern Ukraine.

The Rassvet program, often billed as Russia's answer to Starlink, started launching its first operational satellites earlier this year. Two launches, one in March and a second in July, have delivered 32 Rassvet satellites to low-Earth orbit, some 10 percent of the roughly 300 Rassvet spacecraft Russia aims to put into orbit by the end of next year to provide connectivity for military and civilian users. The company in charge of Rassvet, Bureau 1440, wants to deploy 924 satellites by 2035.

But none of the 32 satellites launched so far have reached the 500-mile (800-kilometer) orbit they were designed to operate in. The rockets that launched the first two batches of Rassvets released the satellites much closer to Earth, and the satellites were expected to use their own plasma engines to raise their orbits over the next few months.

Read full article

Comments

Β© Bureau 1440

Without new landers or rovers, it's helicopters or bust for NASA's Mars program

1 September 2026 at 11:00

For the first time in more than 30 years, NASA has no firm plans to send any new landers or rovers to Mars. Instead, the agency's near-term focus at the red planet is on aerial drones, a pioneering mode of exploration that didn't seem realistic until a few years ago.

The first real use of drones for science at Mars will come with the SkyFall mission, a fleet of three helicopters set for launch as soon as late 2028. SkyFall's helicopters will ride to the red planet with NASA's Space Reactor-1 "Freedom" mission, which has the primary objective of demonstrating nuclear electric propulsion in deep space.

The launch schedule is aggressive for SR-1 Freedom and SkyFall, projects that didn't even exist in NASA's portfolio six months ago. NASA's plan for the SR-1 Freedom mission, estimated to cost $2.1 billion, calls for repurposing the core module of the canceled Gateway lunar space station into a testbed for nuclear electric propulsion. SkyFall will build on NASA's success with the Ingenuity helicopter, an experimental vehicle that became the first rotorcraft to fly on another world in 2021.

Read full article

Comments

Β© AeroVironment

NASA's next "great observatory" begins mission to widen our view of the Universe

31 August 2026 at 13:01

NASA's $4.3 billion Nancy Grace Roman Space Telescope, equipped with a 300-megapixel camera sighted through a refurbished spy mirror, launched Sunday from Kennedy Space Center in Florida on a mission to reveal the mysterious forces driving the Universe.

The new mission will extend the vision of NASA's other famous observatories, providing a field of view 100 times wider than the Hubble Space Telescope and complementing the groundbreaking work of the James Webb Space Telescope. Roman is just the second NASA-led astrophysics mission to launch this century, following the launch of Webb in 2021.

Unlike Webb, which suffered many years of delays before reaching space, Roman arrived at the launch pad nine months before NASA's commitment to send it skyward by May 2027.

Read full article

Comments

Β© SpaceX

The world's busiest spaceport is about to get a lot quieter, at least for now

25 August 2026 at 22:21

SpaceX made Florida's Space Coast home to the world's busiest spaceport for a decade, but that will change this year. The company is significantly cutting the number of launches from Florida until Starship arrives, a senior SpaceX official confirmed Tuesday.

The Falcon 9 rocket has been SpaceX's workhorse, routinely launching batches of satellites for the company's Starlink network, primarily from launch pads at Cape Canaveral Space Force Station and NASA's Kennedy Space Center in Florida. There were 165 Falcon 9 launches last yearβ€”about three flights per weekβ€”and about 75 percent of them carried Starlink satellites.

This year is different. SpaceX has launched more missions from its West Coast launch pad at Vandenberg Space Force Base in California since January, and this trend will amplify for the rest of the year.

Read full article

Comments

Β© SpaceX

Trump's space transportation policy calls for new spaceport on federal land

21 August 2026 at 23:32

A new national space transportation policy signed by President Donald Trump on Thursday calls for the development of more spaceports to support more than 1,000 launches and reentries per year by 2030.

The presidential memorandum replaces a 2013 policy signed by former President Barack Obama. Both policies share an emphasis on supporting the commercial space industry and underscore the importance of assured access to space. But the launch sector has changed immensely since then. There were 176 orbital launch attempts from US soil last year, nearly 10 times the number in 2013. SpaceX led the pack last year with 165 orbital launches of its Falcon 9 rocket, plus five suborbital test flights of the much larger Starship.

"By 2030, our space transportation ranges must grow to support more than 1,000 launches and reentries every year," the policy says. "The policies set forth in this memorandum will secure America's continued superiority in space."

Read full article

Comments

Β© US Space Force/Robert Mason

Rocket Report: SpaceX makes its mark on the Moon; ULA names new boss

21 August 2026 at 11:00

Welcome to Edition 9.07 of the Rocket Report! China's workhorse Long March rocket family appears to be rebounding quickly from a rare launch failure August 10. Chinese officials have not publicly released any information on what may have caused the Long March 7A rocket to break apart less than 90 seconds after liftoff, but the rocket's use of YF-100 engines initially raised questions about the failure's impact on other Chinese rockets that use the same type of engines. But no biggie. YF-100 engines returned to flight six days later with the successful flight of a Long March 12 rocket, and the heavy-lift Long March 5β€”also with YF-100 enginesβ€”is set to launch in a few days with one of China's most important space missions of the decade: the Chang'e 7 lunar lander en route to the Moon's south pole.

As always, we welcome reader submissions. If you don't want to miss an issue, please subscribe using the box below (the form will not appear on AMP-enabled versions of the site). Each report will include information on small-, medium-, and heavy-lift rockets, as well as a quick look ahead at the next three launches on the calendar.

Trouble in Taiwan.Β A prototype for a future satellite launch vehicle developed by Taiwan's top weapons manufacturer veered off course shortly after liftoff Wednesday, Taiwan's Central News Agency reports. The "trajectory anomaly" prompted the activation of the rocket's self-destruct mechanism. The government agency responsible for the test flight, the NationalΒ Chung-Shan Institute of Science and Technology (NCSIST), reported no injuries or property damage. Debris from the rocket fell into a planned safety control zone near the southern tip of Taiwan.

Read full article

Comments

Β© NASA/Goddard Space Flight Center/Intuitive Machines

NASA calls off mission to rescue Swift gamma-ray observatory

20 August 2026 at 00:18

NASA and Katalyst Space Technologies announced Wednesday they are giving up on a robotic mission to rescue the Swift gamma-ray telescope before it falls out of orbit.

The rescue satellite, named Link, launched July 3 on a journey to fly up to NASA's Neil Gehrels Swift Observatory, capture it with three robotic arms, and boost its orbit high enough to escape a looming reentry. Link is about the size of a refrigerator, with two power-generating solar arrays and three xenon-fueled electric thrusters to send Swift into a safer, higher orbit.

Katalyst, the startup leading the Swift rescue effort, said Wednesday that "ongoing attitude control issues" will prevent the Link satellite from completing its rescue mission. The spacecraft is still alive, and Katalyst said it will make the most of Link's remaining capacity, which may still allow it to get near enough to Swift for a demonstration of the satellite's close-in navigation system.

Read full article

Comments

Β© Katalyst Space Technologies

The floodgates are open after another Chinese company lands a reusable rocket

19 August 2026 at 18:41

It has been a little more than a month since China recovered an orbital-class rocket booster for the first time. A second launch operator accomplished a similar feat Tuesday in another sign of China's growing launch capability.

It took 10 years for a second US launch company, Blue Origin, to propulsively land an orbital-class booster after SpaceX did it with the Falcon 9 rocket in 2015. SpaceX has since added a second reusable rocket to its fleet with Starship and its Super Heavy booster. Perhaps a third American company will join SpaceX and Blue Origin's club in 2027. Rocket Lab, Stoke Space, Relativity Space, and Firefly Aerospaceβ€”working in partnership with Northrop Grummanβ€”are working on reusable rockets that could make their first flights in the next couple of years.

A similar number of launch companies are working on reusable rockets in China. Some of them operate under the auspices of the sprawling state-owned China Aerospace Science and Technology Corporation (CASC). Others are more commercial in nature, driven by capital investment from private industry.

Read full article

Comments

Β© LandSpace

Against all odds, SpaceX finally tugs Starship into port after 24 days at sea

18 August 2026 at 19:01

SpaceX's most recent Starship test flight may have ended July 24, but its mission isn't over yet.

The spacecraft splashed down in the Indian Ocean intact after flying halfway around the world from SpaceX's launch base in South Texas. Engineers expected the ship's life to end with a fiery disintegration after toppling over, just as past Starships have done following splashdown.

Numerous onboard sensors and cameras, along with buoys and drones in position at the splashdown zone, have provided important data for SpaceX to assess the performance of the ship's heat shield after each test flight, so officials accepted the post-flight conflagrations. That day, Starship tipped over and remained intact, surprising just about everyone.

Read full article

Comments

Β© SpaceX

The Moon's shadow raced across the heart of Spain, and I was there to see it

17 August 2026 at 20:23

DURATΓ“N, Spainβ€”I'll say it: I'm hooked. Standing in the shadow of the Moon is one of the rarest opportunities to directly sense the mechanics of our Solar System, when the dance between three celestial bodies slides into perfect alignment. It's a mathematical miracle whose rarity and grandeur are made possible by the relative sizes and distances of the Moon and the Sun from Earth. Not every planet is so lucky.

The Moon's shadow crisscrossed the American heartland twice in less than seven years, first in 2017 and again in 2024. I was fortunate to witness both. The experiences left me too impatient to wait for the next total solar eclipse in the continental United States in far-off 2044.

That's what pulled me to the plains of north-central Spain last week. This land of wide open spaces, ancient churches and castles, and vast sunflower fields, all baking under the blinding August Sun, seemed like the perfect location to enter the path of totality. The ongoing drought in Spain has turned the country's fields and forests into a tinderbox, but those conditions made for ideal eclipse viewing.

Read full article

Comments

Β© Stephen Clark/Ars Technica

Here's how engineers plan to save the satellite sent to save NASA's Swift mission

1 August 2026 at 18:20

One week ago, more than 200 miles above the Earth, a refrigerator-size satellite making its way toward an attempted rescue of NASA's $500 million Swift gamma-ray observatory suddenly spun out of control.

It didn't look good. The spacecraft, named Link, was rotating on multiple axes, rendering it unable to maintain a reliable communications link with the ground and complicating efforts to arrest the spin. Two of the satellite's three reaction wheels, used for pointing, also stopped working. Through sporadic radio contact, engineers discovered a problem with some of the spacecraft's cold gas thrusters used for finer attitude control.

The Link satellite is built, owned, and operated by Katalyst Space Technologies, a satellite servicing startup that won a $30 million contract from NASA to fly up to the Swift observatory, grab onto it, and boost its orbit before succumbing to aerodynamic drag and burning up in the atmosphere.

Read full article

Comments

Β© NASA

❌
❌