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Universe Today

Virgin Galactic’s space plane aces its final flight test

View from Virgin Galactic Unity rocket plane in flight
A camera mounted on VSS Unity shows the rocket plane in flight with a curving Earth in the background. (Credit: Virgin Galactic)

After a two-year hiatus, Virgin Galactic’s SpaceShipTwo VSS Unity resumed flying crew members beyond a 50-mile-high space milestone, marking the end of a years-long flight test program and setting the stage for the start of commercial service as soon as next month.

It was the first launch of the Unity rocket plane from its VMS Eve carrier airplane since July 2021, when company founder Richard Branson took a ride. Branson said he was “proud” to be watching from Spaceport America in New Mexico when Unity took flight.

During today’s suborbital flight test, known as Unity 25, the rocket plane sent two pilots and four other Virgin Galactic employees to a maximum height of 54.2 miles, at a top speed of Mach 2.94.

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GeekWire

Gravitational-wave sleuths look for more cosmic crashes

Specialist checks beam alignment at LIGO
A specialist checks the alignment of a test beam at the Laser Interferometer Gravitational-wave Observatory. (NSF Photo)

After three years of upgrading and waiting, due in part to the coronavirus pandemic, the Laser Interferometer Gravitational-wave Observatory has officially resumed its hunt for the signatures of crashing black holes and neutron stars.

“Our LIGO teams have worked through hardship during the past two-plus years to be ready for this moment, and we are indeed ready,” Caltech physicist Albert Lazzarini, the deputy director of the LIGO Laboratory, said in a news release.

Lazzarini said the engineering tests leading up to today’s official start of Observing Run 4, or O4, have already revealed a number of candidate events that have been shared with the astronomical community.

“Most of these involve black hole binary systems, although one may include a neutron star,” he said. “The rates appear to be consistent with expectations.”

One such event, called S230518h, was detected last week. Researchers say that if they can confirm the data, the event was most likely caused by the merger of a faraway black hole and a neutron star.

The twin LIGO gravitational-wave detectors at Hanford, Wash., and Livingston, La., will be joined for O4 by the Virgo detector in Italy as well as the KAGRA observatory in Japan. Virgo is scheduled to take part in the run starting later this year. KAGRA will parallel LIGO’s observations for the next month, take a break for some upgrades, and then rejoin the run.

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Universe Today

SETI researchers are simulating alien contact

Allen Telescope Array in California.
Radio telescopes monitor the sky at the Allen Telescope Array in California. (SETI Institute Photo)

Is it a multimedia art project? Or a rehearsal for alien contact? Let’s call it both: Researchers specializing in the search for extraterrestrial intelligence, or SETI, are working with a media artist to stage the receipt of an interstellar message — and a global effort to decode the message.

The project, titled “A Sign in Space,” is orchestrated by media artist Daniela de Paulis in collaboration with the SETI Institute, the European Space Agency, the Green Bank Observatory and the Italian National Institute for Astrophysics (also known as INAF).

The metaphorical curtain rises on May 24, when ESA’s ExoMars Trace Gas Orbiter transmits an encoded radio message from Martian orbit to Earth at 19:00 UTC / noon PDT.

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GeekWire

SpaceX sends Axiom’s crew No. 2 to the space station

SpaceX Falcon 9 launch
SpaceX’s Falcon 9 rocket rises from its pad, sending four astronauts into space. (Axiom Space via YouTube)

SpaceX and Axiom Space teamed up today to send four spacefliers — including the first Saudi woman in orbit — to the International Space Station for a 10-day trip focusing on zero-gravity research.

SpaceX’s two-stage Falcon 9 rocket lifted off from NASA’s Kennedy Space Center in Florida at 5:37 p.m. ET (2:37 p.m. PT) at the end of a trouble-free countdown, sending a Crew Dragon capsule toward a space station rendezvous.

After stage separation, the Falcon 9’s first-stage booster flew itself back to a landing zone near the launch pad while the second stage pushed the Crew Dragon into orbit. That marked the first time a Falcon 9 booster made a touchdown on land (as opposed to at sea) after launching a crewed mission.

“It was a phenomenal ride,” Axiom mission commander Peggy Whitson, a former NASA astronaut who holds the U.S. record for cumulative time in space, told Mission Control from zero-G.

The mission, which is Texas-based Axiom Space’s second expedition to the space station, combines public and private-sector initiatives: NASA, SpaceX and Axiom are coordinating operations in orbit. Mission pilot John Shoffner, a Tennessee business executive who’s also a race car driver and competitive skydiver, purchased one of the seats on the Crew Dragon at a cost that’s thought to be somewhere in the range of $55 million.

The Saudi government is paying the fare for the Ax-2 mission’s two other crew members: Rayyanah Barnawi, Saudi Arabia’s first female spaceflier, is a biochemist specializing in stem cell research. Ali Alqarni is a Saudi Air Force fighter pilot. Only one other Saudi citizen has previously been to space: Prince Sultan bin Salman Al-Saud, who flew on the shuttle Discovery in 1985.

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GeekWire

Experiment blazes a trail for growing stem cells in space

Photomicrograph of induced pluripotent stem cells
A live colony of human induced pluripotent stem cells fills the screen of a microscope. (Allen Institute Photo)

Space: The final frontier … for stem cells? Seattle’s Allen Institute for Cell Science says cells from its collection are going into space for the first time on a private mission to the International Space Station.

The Allen Cell Collection’s assortment of human induced pluripotent stem cells, or IPSCs, will be the focus for one of more than 20 experiments being sent into orbit on a flight organized by Texas-based Axiom Space.

Former NASA astronaut Peggy Whitson will command the Ax-2 mission — Axiom’s second trip to the space station — and her crewmates will include Tennessee business executive John Shoffner as well as Saudi astronauts Ali Alqarni and Rayyanah Barnawi.

SpaceX’s Falcon 9 rocket will loft the crew into orbit in a SpaceX Crew Dragon capsule for what’s expected to be a weeklong stay on the station. Liftoff is set for May 21 at 5:37 p.m. ET (2:37 p.m. PT) at NASA’s Kennedy Space Center in Florida. The fare for each rider on last year’s Ax-1 mission was around $55 million, and although the ticket price for Ax-2 hasn’t been announced, it’s probably in a similar range.

The stem-cell study is part of a series of NASA-funded experiments led by researchers at Cedars-Sinai Medical Center in Los Angeles. This experiment is expected to break new ground when it comes to growing IPSCs in space and modifying the cells’ DNA for therapeutic purposes.

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Universe Today

Astronomers want your help to identify risky asteroids

Catalina Sky Survey telescope
The Catalina Sky Survey 60-inch telescope observes the cosmos from Mount Lemmon in Arizona. (Credit: Catalina Sky Survey)

You, too, can be an asteroid hunter — thanks to a citizen-science project launched by the University of Arizona’s Lunar and Planetary Laboratory. And you might even get a scientific citation.

The project is enlisting human spotters to verify potential detections of space rocks moving through the field of view of the Catalina Sky Survey’s telescopes. The NASA-funded survey is charged with keeping track of more than a million asteroids, with a principal goal of identifying near-Earth objects that could pose a risk to our planet.

More than 14,400 near-Earth objects, or NEOs, have been discovered by the Catalina Sky Survey during the past 30 years, including 1,200 that were identified just in the past year. That adds up to nearly half of the known NEO population.

The problem is, astronomers know there are still lots of unknown asteroids out there — too many for them to spot without an assist from amateurs. “We take so many images of the sky each night that we cannot possibly look through all of our potential real asteroids,” Carson Fuls, a science engineering specialist for the Catalina Sky Survey, said in a NASA news release.

That’s where the Daily Minor Planet can make a difference.

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Fiction Science Club

Chasing SpaceX: The new space race gets a reality check

Astra / Firefly / Rocket Lab / Planet space hardware
Astra, Firefly Aerospace and Rocket Lab build rockets, while Planet Labs builds satellites. (Credits: Astra / Firefly / Rocket Lab / NASA)

Can anyone keep up with SpaceX in the commercial space race?

It might be one of the four companies profiled in “When the Heavens Went on Sale” — a new book written by Ashlee Vance, the tech journalist who chronicled SpaceX founder Elon Musk’s feats and foibles eight years ago.

Or it might be one of the dozens of other space ventures that have risen up to seek their fortune on the final frontier. Or maybe no one.

The space race’s ultimate prizes may still be up for grabs, but in Vance’s view, one thing is clear: There wouldn’t be a race if it weren’t for Musk and SpaceX.

“Elon sort of set this whole thing in motion,” Vance says in the latest episode of the Fiction Science podcast. “My book is more or less a story of people who want to be the next Elon Musk.”

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GeekWire

12 companies collaborate with NASA on tech frontiers

Rocket module sitting outside Blue Origin facility in Florida
One of the modules for the New Glenn rocket sits outside Blue Origin’s Florida factory. (Blue Origin Photo)

Amazon founder Jeff Bezos’ Blue Origin space venture is among 12 companies chosen to collaborate with NASA on new technologies that could become part of future missions to the moon and Mars.

Blue Origin has signed up to work with NASA’s Langley Research Center in Virginia and Marshall Space Flight Center in Alabama on friction-stir additive manufacturing. It’ll also partner with Langley as well as Ames Research Center in California to work on a metallic thermal protection system.

“We’re pleased to have been selected by NASA to partner on developing these technologies,” Blue Origin said in an email.

NASA says Kent, Wash.-based Blue Origin and the other 11 companies will advance capabilities and technologies related to the space agency’s Moon to Mars Objectives. The work will be done under the terms of unfunded Space Act Agreements, following up on an Announcement of Collaboration Opportunity issued last year.

That means no money will be transferred between NASA and its partners. Instead, NASA will make its in-house expertise available to help the companies develop products that the space agency could procure for future missions.

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Universe Today

Japanese company loses contact with its moon lander

Earth as seen over moon's horizon during solar eclipse
An image from Hakuto-R shows Earth over the moon's horizon, with a dark spot caused by a total solar eclipse. Credit: ispace

A lunar lander built and operated by ispace, a Japanese startup, descended to the surface of the moon today after a months-long journey — but went out of contact and was presumed lost.

“We have to assume that we could not complete the landing on the lunar surface,” ispace CEO Takeshi Hakamada said during a webcast of the Hakuto-R mission’s final stages.

Ground controllers at the Hakuto-R Mission Control Center in Tokyo continued trying to re-establish communications nevertheless, and Hakamada said his company would try again.

“We are very proud of the fact that we have achieved many things during this Mission 1,” he said. “We will keep going. Never quit the lunar quest.”

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Universe Today

Starship has a glorious liftoff — but then breaks up

Starship liftoff, with smoke and flames
SpaceX's Starship super-rocket rises from its Texas launch pad. Credit: SpaceX via YouTube

SpaceX’s Starship launch system lifted off on its first full-scale test flight today, rising majestically from its Texas launch pad but falling short of stage separation.

The uncrewed mission represented the most ambitious test yet for the world’s most powerful rocket — which eventually could send people to the moon and Mars, and even between spaceports on our own planet.

Liftoff from SpaceX’s Starbase complex at Boca Chica on the South Texas coast came at 8:33 a.m. CDT (9:33 a.m. EDT). The Starship system’s Super Heavy booster, powered by 33 methane-fueled Raptor rocket engines, rose into clear skies with a deafening roar and a blazing pillar of flame.

Hundreds of SpaceX employees cheered at the company’s California headquarters, but the crowd turned quiet three minutes into the flight when the Starship upper stage failed to separate from the booster as planned. The entire rocket spun in the air as a ground-based camera watched.

A minute later, SpaceX’s flight termination system destroyed both stages of the rocket as a safety measure. “Obviously, we wanted to make it all the way through, but to get this far, honestly, is amazing,” launch commentator Kate Tice said.

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