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A SpaceX rocket soared into orbit from Florida on Wednesday carrying the next long-term International Space Station crew, with a Russian cosmonaut, two Americans and a Japanese astronaut flying together in a demonstration of US-Russian teamwork in space despite Ukraine war tensions.

A high-ranking official of the Russian space agency Roscosmos said shortly after the launch that the flight marked “a new phase of our cooperation” with the US space agency NASA.

The SpaceX launch vehicle, consisting of a Falcon 9 rocket topped with a Crew Dragon capsule dubbed Endurance, lifted off into clear skies at noon EDT (9:30pm IST) from NASA‘s Kennedy Space Center in Cape Canaveral. The two-stage, 23-story-tall Falcon 9 ascended from the launch tower as its nine Merlin engines roared to life in billowing clouds of vapor and a reddish-orange fireball.

The mission is notable for the inclusion of Anna Kikina, 38, the lone female cosmonaut on active duty with Roscosmos, making it the first spaceflight with a Russian launched from US soil in two decades. As the spacecraft entered Earth orbit, Kikina radioed her thanks to NASA, Roscosmos and their International Space Station (ISS) partners for “giving us this great opportunity.”

“We’re so glad to do it together,” Kikina said.

Kikina, who had trained in the US for the flight since spring 2021, was essentially swapping places with a NASA astronaut who took her seat aboard a Russian Soyuz flight to the ISS last month under a new ride-sharing deal signed by NASA and Roscosmos in July.

About nine minutes after Wednesday’s launch, the rocket’s upper stage delivered the Crew Dragon into a preliminary orbit as it streaked through space at nearly 16,000 miles per hour (27,000 kph). The reusable lower-stage booster flew itself back to Earth and landed safely on a drone recovery vessel at sea.

The four crew members and their autonomously flying capsule were due to reach the ISS in about 29 hours, on Thursday evening, to begin a 150-day science mission aboard the orbital laboratory some 250 miles (420 km) above Earth.

The mission, designated Crew-5, marks the fifth full-fledged ISS crew NASA has flown aboard a SpaceX vehicle since the private rocket venture founded by Tesla CEO Elon Musk began sending US astronauts aloft in May 2020.

‘Smooth ride’

The team was led by Nicole Aunapu Mann, 45, who became the first Native American woman sent to orbit by NASA and the first woman to take the commander’s seat of a SpaceX Crew Dragon.

Moments after reaching orbit, as mission control wished the crew “Godspeed,” Mann radioed back, “Awesome. Thank you so much to the Falcon team. Whew! That was a smooth ride uphill.”

Mann, a U.S. Marine Corps colonel and combat fighter pilot, is also among the first group of 18 astronauts selected for NASA’s upcoming Artemis missions aimed at returning humans to the moon later this decade.

The designated pilot was Mann’s fellow spaceflight rookie Josh Cassada, 49, a U.S. Navy aviator and test pilot with a doctorate in high-energy particle physics. Rounding out the crew from Japan’s space agency JAXA was Koichi Wakata, 59, a robotics expert making his fifth voyage to space.

The team will be welcomed by seven existing ISS occupants – the Crew-4 team consisting of three Americans and an Italian astronaut – as well as two Russians and the NASA astronaut who flew with them to orbit on a Soyuz flight.

The new arrivals are set to conduct more than 200 experiments, many focused on medical research ranging from 3-D “bio-printing” of human tissue to a study of bacteria cultured in microgravity.

ISS, the length of a football field, has been continuously occupied since 2000, operated by a US-Russian-led consortium that includes Canada, Japan and 11 European countries. It was born in part to improve relations between Washington and Moscow following the Soviet Union’s collapse and the end of Cold War rivalries that spurred the original American-Soviet space race.

NASA-Roscosmos relations have been tested since Russia invaded Ukraine in February and US imposed sweeping sanctions against Moscow.

At a post-launch NASA-SpaceX briefing on Wednesday, Sergei Krikalev, head of human spaceflight for Roscosmos, said he and the agency chief Yuri Borisov were seeking to ease tensions after Borisov’s predecessor, Dmitry Rogozin, raised questions about the future of the ISS partnership.

Krikalev cited bilateral teamwork in space dating back to the Apollo-Soyuz era in 1975, saying, “We started our cooperation many years ago, over 40 years ago, and will continue our cooperation as long as I can imagine.”

The July crew-exchange deal paved the way for resuming routine joint US-Russian flights to the ISS that had begun during the space shuttle era and continued after shuttles ceased flying in 2011. From then until SpaceX began offering crewed launch services nine years later, Soyuz was the only avenue to orbit for US astronauts.

© Thomson Reuters 2022

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A Nearby Supernova May End Dark Matter Search, Claims New Study

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A Nearby Supernova May End Dark Matter Search, Claims New Study

The pursuit of understanding dark matter, which comprises 85 percent of the universe’s mass, could take a significant leap forward with a nearby supernova. Researchers at the University of California, Berkeley, led by Associate Professor of Physics Benjamin Safdi, have theorised that the elusive particle known as the axion might be detected within moments of gamma rays being emitted from such an event. Axions, predicted to emerge during the collapse of a massive star’s core into a neutron star, could transform into gamma rays in the presence of intense magnetic fields, offering a potential breakthrough in physics.

Potential Role of Gamma-Ray Telescopes

The study was published in Physical Review Letters and revealed that the gamma rays produced from axions could confirm the particle’s mass and properties if detected. The Fermi Gamma-ray Space Telescope, currently the only gamma-ray observatory in orbit, would need to be pointed directly at the supernova, with the likelihood of this alignment estimated at only 10 percent. A detection would revolutionise dark matter research, while the absence of gamma rays would constrain the range of axion masses, rendering many existing dark matter experiments redundant.

Challenges in Catching the Event

For detection, the supernova must occur within the Milky Way or its satellite galaxies—an event averaging once every few decades. The last such occurrence, supernova 1987A, lacked sensitive enough gamma-ray equipment. Safdi emphasised the need for preparedness, proposing a constellation of satellites, named GALAXIS, to ensure 24/7 sky coverage.

Axion’s Theoretical Importance

The axion, supported by theories like quantum chromodynamics (QCD) and string theory, bridges gaps in physics, potentially linking gravity with quantum mechanics. Unlike neutrinos, axions could convert into photons in strong magnetic fields, providing unique signals. Laboratory experiments like ABRACADABRA and ALPHA are also probing for axions, but their sensitivity is limited compared to the scenario of a nearby supernova. Safdi expressed urgency, noting that missing such an event could delay axion detection by decades, underscoring the high stakes of this astrophysical endeavour.

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Fastest-Moving Stars in the Galaxy May be Piloted by Aliens, New Study Suggests

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Fastest-Moving Stars in the Galaxy May be Piloted by Aliens, New Study Suggests

Intelligent extraterrestrial civilisations might be utilising stars as massive interstellar vehicles to explore the galaxy, according to a theory proposed by Clement Vidal, a philosopher at Vrije Universiteit Brussel in Belgium. His research suggests that alien species could potentially accelerate their binary star systems to traverse vast cosmic distances. While such a concept is purely hypothetical and unproven, Vidal’s recent paper, which has not undergone peer review, raises intriguing possibilities about advanced extraterrestrial engineering.

Concept of Moving Star Systems

The study was published in the Journal of the British Interplanetary Society. As per a report by LiveScience, the idea revolves around the notion that alien civilisations, instead of building spacecraft for interstellar travel, might manipulate entire star systems to travel across the galaxy. Vidal highlights binary star systems, particularly those involving neutron stars and smaller companion stars, as ideal candidates. Neutron stars, due to their immense gravitational energy, could serve as anchors for devices designed to propel the system by selectively ejecting stellar material.

Vidal explained in the paper that uneven heating or manipulation of magnetic fields on a star’s surface could cause it to eject material in one direction. This process would create a reactionary thrust, propelling the binary system in the opposite direction. The concept provides a way to travel while preserving planetary ecosystems, making it a theoretically viable method for species reliant on their home systems.

Known Examples with High Velocities

Astronomers have identified hypervelocity stars, such as the pulsars PSR J0610-2100 and PSR J2043+1711, which exhibit high accelerations. While their movements are believed to be natural phenomena, Vidal suggests they could be worth further investigation to rule out potential artificial influences.

This theory adds an unconventional angle to the search for intelligent life, expanding possibilities beyond traditional methods of exploration like searching for signals or probes. The research underscores the importance of considering advanced and unconventional methods aliens might employ to navigate the galaxy.

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Hubble Telescope Finds Unexpectedly Hot Accretion Disk in FU Orionis

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Hubble Telescope Finds Unexpectedly Hot Accretion Disk in FU Orionis

NASA’s Hubble Space Telescope has provided new insights into the young star FU Orionis, located in the constellation Orion. Observations have uncovered extreme temperatures in the inner region of its accretion disk, challenging current models of stellar accretion. Using Hubble’s Cosmic Origins Spectrograph and Space Telescope Imaging Spectrograph, astronomers captured far-ultraviolet and near-ultraviolet spectra, revealing the disk’s inner edge to be unexpectedly hot, with temperatures reaching 16,000 kelvins—almost three times the Sun’s surface temperature.

A Star’s Bright Outburst Explained

First observed in 1936, FU Orionis became a hundred times brighter in months and has remained a unique object of study. Unlike typical T Tauri stars, its accretion disk touches the stellar surface due to instabilities. These are caused by the disk’s large mass, interactions with companion stars, or material falling inwards. Lynne Hillenbrand, a co-author from Caltech, in a statement said that the ultraviolet brightness seen exceeded predictions, revealing a highly dynamic interface between the star and its disk.

Implications for Planet Formation

As per a report by NASA, the study holds significant implications for planetary systems forming around such stars. The report further quoted Adolfo Carvalho, lead author of the study, saying that while distant planets in the disk may experience altered chemical compositions due to outbursts, planets forming close to the star could face disruption or destruction. This revised model provides critical insights into the survival of rocky planets in young star systems, he further added.

Future Investigations on FU Orionis

The research team continues to examine spectral emission lines in the collected data, aiming to map gas movement in the star’s inner regions. Hillenbrand noted that FU Orionis offers a unique opportunity to study the mechanisms at play in eruptive young stars. These findings, published in The Astrophysical Journal Letters, showcase the ongoing value of Hubble’s ultraviolet capabilities in advancing stellar science.

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