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British billionaire Richard Branson on Sunday soared more than 50 miles above the New Mexico desert aboard his Virgin Galactic rocket plane and safely returned in the vehicle’s first fully crewed test flight to space, a symbolic milestone for a venture he started 17 years ago.

Branson, one of six Virgin Galactic employees strapped in for the ride, touted the mission as a precursor to a new era of space tourism, with the company he founded in 2004 poised to begin commercial operations next year.

“We’re here to make space more accessible to all,” an exuberant Branson, 70, said shortly after embracing his grandchildren following the flight. “Welcome to the dawn of a new space age.”

The success of the flight also gave the flamboyant entrepreneur bragging rights in a highly publicised rivalry with fellow billionaire Jeff Bezos, the Amazon online retail mogul who had hoped to fly into space first aboard his own space company’s rocket.

“Congratulations on the flight,” Bezos said on Instagram. “Can’t wait to join the club!”

Space industry executives, future customers and other well-wishers were on hand for a festive gathering to witness the launch, which was livestreamed in a presentation hosted by late-night television comedian Stephen Colbert. Joining the reception was another billionaire space industry pioneer, Elon Musk, who is also founder of electric carmaker Tesla.

Grammy-nominated R&B singer Khalid performed his forthcoming single “New Normal” after the flight.

The gleaming white spaceplane was carried aloft attached to the underside of the dual-fuselage jet VMS Eve (named for Branson’s late mother) from Spaceport America, a state-owned facility near the aptly named town of Truth or Consequences. Virgin Galactic leases a large section of the facility.

Reaching its high-altitude launch point at about 46,000 feet, the VSS Unity passenger rocket plane was released from the mothership and fell away as the crew ignited its rocket, sending it streaking straight upward at supersonic speed to the blackness of space some 53 miles (86 km) high.

The spaceplane’s contrail was clearly visible from the ground as it soared through the upper atmosphere, to the cheers of the crowd below.

At the apex of the climb with the rocket shut down, the crew then experienced a few minutes of microgravity, before the spaceplane shifted into re-entry mode, and began a gliding descent to a runway back at the spaceport. The entire flight lasted about an hour.

“I was once a child with a dream looking up to the stars. Now I’m an adult in a spaceship looking down to our beautiful Earth,” Branson said in a video from space.

Back at a celebration with supporters from a stage outside Virgin Galactic’s Gateway to Space complex at the spaceport, he and crewmates doused one another with champagne.

Retired Canadian astronaut Chris Hadfield pinned Virgin-produced astronaut wings onto the blue flight suits worn by Branson and his team. Official wing pins from the Federal Aviation Administration will be presented later, a company spokesman said.

High-cost tickets

Virgin Galactic has said it plans at least two further test flights of the spaceplane in the months ahead before beginning regular commercial operation in 2022. One of those flights will carry four Italian astronauts-in-training, according to company CEO Michael Colglazier.

He said 600 wealthy would-be citizen astronauts have also booked reservations, priced at around $250,000 (roughly Rs. 1.86 crores) per ticket for the exhilaration of supersonic flight, weightlessness, and the spectacle of spaceflight.

Branson has said he aims ultimately to lower the price to around $40,000 (roughly Rs. 29.7 lakhs) per seat as the company ramps up service, achieving greater economies of scale. Colglazier said he envisions eventually building a large enough fleet to accommodate roughly 400 flights annually at the spaceport.

The Swiss-based investment bank UBS has estimated the potential value of the space tourism market reaching $3 billion (roughly Rs. 22,340 crores) annually by 2030.

Proving rocket travel safe for the public is key.

An earlier prototype of the Virgin Galactic rocket plane crashed during a test flight over California’s Mojave Desert in 2014, killing one pilot and seriously injuring another.

Space race

Branson’s participation in Sunday’s flight, announced just over a week ago, typified his persona as the daredevil executive whose various Virgin brands – from airlines to music companies – have long been associated with his ocean-crossing exploits in sailboats and hot-air balloons.

His ride-along also upstaged rival astro-tourism venture Blue Origin and its founder, Bezos, in what has been popularised as the “billionaire space race.” Bezos has been planning to fly aboard his own suborbital rocketship, the New Shepard, later this month.

Branson has insisted he and Bezos are friendly rivals and were not racing to beat one another into space.

“We wish Jeff the absolute best and that he will get up and enjoy his flight,” Branson said at a post-flight press conference.

Blue Origin, however, has disparaged Virgin Galactic as falling short of a true spaceflight experience, saying that unlike Unity, Bezos’s New Shepard tops the 62-mile-high-mark (100 km), called the Kármán line, set by an international aeronautics body as defining the boundary between Earth’s atmosphere and space.

“New Shepard was designed to fly above the Kármán line so none of our astronauts have an asterisk next to their name,” Blue Origin said in a series of Twitter posts on Friday.

However, US space agency NASA and the US Air Force both define an astronaut as anyone who has flown higher than 50 miles (80km).

A third player in the space tourism sector, Musk’s SpaceX, plans to send its first all-civilian crew (without Musk) into orbit in September, after having already launched numerous cargo payloads and astronauts to the International Space Station for NASA.

The spaceplane’s two pilots were Dave Mackay and Michael Masucci. The three other mission specialists were Beth Moses, the company’s chief astronaut instructor; Virgin Galactic’s lead operations engineer Colin Bennett; and Sirisha Bandla, a research operations and government affairs vice president.

All recounted afterward being mesmerised by the view through Unity’s windows. Mackay described the immense blackness of space against the brightness of Earth’s surface, “separated by the beautiful blue atmosphere, which is very complex and very thin.”

“Cameras don’t do it justice,” he told reporters. “You have to see it with your own eyes.”

© Thomson Reuters 2021


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Astronomers Discover 3I/ATLAS, Largest Interstellar Comet Yet Detected

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Astronomers Discover 3I/ATLAS, Largest Interstellar Comet Yet Detected

Astronomers have discovered the third interstellar comet to pass through our solar system. Named 3I/ATLAS (initially A11pl3Z), it was first spotted July 1 by the ATLAS telescope in Chile and confirmed the same day. Pre-discovery images show it in the sky as far back as mid-June. The object is racing toward the inner system at roughly 150,000 miles per hour on a near-straight trajectory, too fast for the Sun to capture. Estimates suggest its nucleus may be 10–20 km across. Now inside Jupiter’s orbit, 3I/ATLAS will swing closest to the Sun in October and should remain observable into late 2025.

Discovery and Classification

According to NASA, in early July the ATLAS survey telescope in Chile spotted a faint moving object first called A11pl3Z, and the IAU’s Minor Planet Center confirmed the next day that it was an interstellar visitor. The object was officially named 3I/ATLAS and noted as likely the largest interstellar body yet detected. At first it appeared to be an ordinary near-Earth asteroid, but precise orbit measurements showed it speeding at ~150,000 mph – far too fast for the Sun to capture. Astronomers estimate 3I/ATLAS spans roughly 10–20 km across. Signs of cometary activity – a faint coma and short tail – have emerged, earning it the additional comet designation C/2025 N1 (ATLAS).

Studying a Pristine Comet

3I/ATLAS was spotted well before its closest approach, giving astronomers time to prepare detailed observations. It will pass within about 1.4 AU of the Sun in late October. Importantly, researchers can study it while it is still a pristine frozen relic before solar heating alters it. As Pamela Gay notes, discovering the object on its inbound leg leaves “ample time” to analyze its trajectory. Astronomers are now racing to obtain spectra and images – as Chris Lintott warns, the comet will be “baked” by sunlight as it nears perihelion.

Determining its composition and activity is considered “a rare chance” to learn how planets form in other star systems. With new facilities like the Vera C. Rubin Observatory coming online, researchers expect more such visitors in the years ahead. 3I/ATLAS offers a rare chance to study material from another star system.

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NASA’s New Horizons Proves Deep-Space Navigation via Stellar Parallax



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NASA’s New Horizons Proves Deep-Space Navigation via Stellar Parallax

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NASA's New Horizons Proves Deep-Space Navigation via Stellar Parallax

NASA’s New Horizons spacecraft carried out an unprecedented deep-space star navigation test while 438 million miles from Earth. Using its long-range camera in April 2020, it captured images of Proxima Centauri and Wolf 359, which appeared slightly shifted in the sky compared to Earth’s view – a striking demonstration of stellar parallax. It was the first-ever demonstration of deep-space stellar navigation. By comparing these images to Earth-based observations and a 3D star chart, scientists calculated New Horizons’ position to within about 4.1 million miles, only about 26 inches across the United States.

Stellar Parallax Test

According to the paper describing the results, accepted for publication in The Astronomical Journal, New Horizons’ camera imaged Proxima Centauri (4.2 light-years away) and Wolf 359 (7.86 light-years) on April 23, 2020. From the spacecraft’s distant vantage point, the two stars appear in different positions than seen from Earth – the essence of stellar parallax. By comparing those images with Earth-based data and a three-dimensional map of nearby stars, the team worked out the probe’s location to within about 4.1 million miles.

As lead author Tod Lauer explained, “Taking simultaneous Earth/Spacecraft images we hoped would make the concept of stellar parallaxes instantly and vividly clear”. He added, “It’s one thing to know something, but another to say ‘Hey, look! This really works!’”.

New Horizons and Future Missions

New Horizons, the fifth spacecraft to leave Earth and reach interstellar space, flew past Pluto and its moon Charon in 2015, sending home the first close-up images of those distant icy worlds. Now on an extended mission, the probe is studying the heliosphere.

New Horizons’ principal investigator Alan Stern called the parallax test “a pioneering interstellar navigation demonstration” that shows a spacecraft can use onboard cameras “to find its way among the stars”, in a statement. He also noted it “could be highly useful for future deep space missions in the far reaches of the Solar System and in interstellar space”

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AI Designs Ocean Gliders Inspired by Sea Creatures to Boost Underwater Research Efficiency

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AI Designs Ocean Gliders Inspired by Sea Creatures to Boost Underwater Research Efficiency

Marine animals like fish and seals have long inspired ocean engineers due to their fluid, energy-efficient movements. Now, researchers are turning to these sea animals to create a new class of underwater gliders that requires very little energy, according to a team led by researchers from MIT’s Computer Science and Artificial Intelligence Laboratory (CSAIL) and the University of Wisconsin-Madison. They used artificial intelligence to design forms that slide through the water with less resistance, making long-term ocean exploration more efficient. These gliders, fabricated via 3D printing, promise better data collection on currents, salt levels, and climate impacts.

AI-Powered 3D Designs Create Energy-Efficient Underwater Gliders Inspired by Marine Life Forms

As per a study published on the arXiv preprint server, the team used machine learning to create and simulate numerous novel 3D glider shapes. By comparing traditional models—like submarines and sharks—with digitally altered versions, their algorithm learnt how different designs behaved at various “angles-of-attack.” A neural network then evaluated the lift-to-drag ratio of each shape, identifying those most likely to glide efficiently through water. These shapes were then fabricated using lightweight materials that minimised energy use.

In tests, two AI-generated prototypes—one shaped like a two-winged plane and the other like a four-finned flatfish—were built and tested both in wind tunnels and underwater. Key hardware was integrated with the gliders, including buoyancy control by a pump and a mass shifter to move the angle during displacements. The new gliders, with better shapes and lift-to-drag ratios, could travel farther on less power than traditional torpedo-shaped types.

The team added that what they are doing not only makes new types of designs possible but also reduces design times and cuts the cost since it doesn’t require physical prototyping. “This high degree of shape diversity hasn’t been investigated before,” Peter Yichen Chen, an MIT postdoc and co-lead author on the project, mentioned. He also noted that their AI pipeline allows testing forms that would be “very taxing” for humans to manually design.

The future plans are to produce slimmer and more manoeuvrable gliders and to improve the AI system with more configurable options. Intelligent bioinspired vehicles like these, the researchers say, will be essential in studying dynamic ocean environments that are changing quickly with the intensifying demands of industrial activity, ultimately offering more flexible and efficient ways for us to explore Earth’s last frontier.

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Hubble Observations Give Forgotten Globular Cluster Its Moment to Shine



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