
Researchers observe early state of planet formation beyond Earth's sun
July 15 (UPI) -- A group of international researchers said Wednesday they witnessed some of the earliest stages of a planet beyond the Earth's sun beginning to form.
The researchers from the United States, Canada and Europe saw the hot space minerals just as they began to solidify, marking the earliest stage in the planet-forming process that researchers have witnessed.
"For the first time, we have identified the earliest moment when planet formation is initiated around a star other than our sun," professor at Leiden University in the Netherlands, Melissa McClure said.
The process was witnessed around the baby star HOPS-315, an analog for the budding sun, that is 1,300 light years away from Earth.
Researchers had previously witnessed young discs of gas and dust called "protoplanetary discs" that were the birthplace for newly formed Jupiter-like planets but the latest showed an earlier stage that scientists had never observed before.
"We've always known that the first solid parts of planets, or 'planetesimals,' must form further back in time, at earlier stages," McClure said.
Researchers first identified the minerals using the James Webb Telescope and then observed the system with the Atacama Large Millimeter/submillimeter Array, or ALMA, to determine where the signals were coming from.
The findings showed that silicon monoxide, or SiO, which has the potential to condense in the high temperatures found in young planetary discs, can be found when baby stars are in their gaseous state, meaning it was just beginning to solidify.
"This process has never been seen before in a protoplanetary disc or anywhere outside our Solar System," Professor at the University of Michigan, Edwin Bergin said.
Andrew Sookdeo contributed to this report.
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Teenage rocket maker One Saturday, a 16-year-old hauled a heavy, three-foot tube into the middle of a large field in Wisconsin. He had persuaded his science teacher to help him make a makeshift rocket. Somehow, he had managed to get his hands on the ingredients for gunpowder - potassium nitrate, sulphur and charcoal. He pulled on a welder's helmet for protection. He packed it with powder, struck a match and ran like hell. The rocket rose 80 feet into the air and exploded. Had the chemicals been packed slightly differently, he would have been blown to pieces. For Jim Lovell, this was more than a childish lark. In achieving his dream to be a rocket scientist, he would become an American hero. But it was not going to be easy. James Arthur Lovell Jr was born on 25 March 1928 - just a year after Charles Lindbergh made his historic trip across the Atlantic. "Boys like either dinosaurs or airplanes," he said. "I was very much an airplane boy." When he was five years old, his father died in a car accident. His mother, Blanche, worked all hours, struggling to keep food on the table. University was well beyond their financial reach. The answer was the US Navy, which was hungry for new pilots after World War Two. It was not building rockets but at least it involved flying. Lovell signed up to a programme that sent him to college at the military's expense while training as a fighter pilot. Two years in, he gambled and switched to the Navy Academy at Annapolis, on Chesapeake Bay, in the hope of working with his beloved rockets. It was a lucky decision. A few months later, the Korean War broke out and his former fellow apprentice pilots were sent to South East Asia. Many never got to finish their education. Marriage was banned at Annapolis and girlfriends discouraged. The navy did not want its midshipmen wasting their time on such frivolities. But Lovell had a sweetheart. Marilyn Gerlach was the high school girl he had shyly asked to the prom. Women were not allowed on campus and trips outside were limited to 45 minutes. Somehow the relationship survived. Just hours after his graduation in 1952, the newly commissioned Ensign Lovell married her. They would be together for more than 70 years, until Marilyn's death in 2023. He did everything he could to advertise his love of rocketry. His thesis at the Navy Academy was in the unheard-of topic of liquid-fuel engines. After graduation, he hoped to specialise in this pioneering new technology. But the navy had other ideas. Lovell was assigned to an aircraft carrier group flying Banshee jets off ships at night. It was a white-knuckle, high-wire business fit only for daredevils. But for Lovell, it was not enough. Kennedy's men In 1958, he applied to Nasa. Project Mercury was America's attempt to place a man in orbit around the Earth. 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And then, from over the advancing horizon, an incredible sight. "Earthrise," gasped Borman. "Get the camera, quick," said Lovell. It was Christmas Eve 1968. America was mired in Vietnam abroad and civil unrest at home. But at that moment, it seemed that humanity was united. The people of the world saw their planet as the astronauts saw it - fragile and beautiful, shining in the desolation of space. Lovell read from the Book of Genesis, the basis of many of the world's great religions, to the people of the Earth. "And God called the light Day, and the darkness he called Night. And the evening and the morning were the first day." For him, it was an image that changed our world forever. He put his thumb against the window and the whole world disappeared behind it. It was the most moving experience of his life. As the spacecraft re-emerged from the darkness, Lovell was first to announce the good news. "Please be advised," he said as the radio crackled back into life, "there is a Santa Claus." At that very moment, 239,000 miles away, a man in a blue Rolls-Royce pulled up outside Lovell's house in Houston. He walked past the dozens of reporters camped outside and handed a box to Marilyn. She opened the star-patterned tissue paper and pulled out a mink jacket. "Happy Christmas," said the card that came with it, "and love from the Man in the Moon." They went up as astronauts and came down celebrities. The people of the Earth had followed their every move on TV. There were ticker tape parades, congressional honours and a place on the cover of Time Magazine. And they had not even set foot on the Moon. That honour went, of course, to Neil Armstrong and Buzz Aldrin. A year later, Kennedy's dream was posthumously seen to fruition. A small step was taken and mankind took its giant leap. The New Nine had done their job. 'Houston, we've had a problem' In April 1970, it was Jim Lovell's turn. Fortunately, the crew of Apollo 13 did not believe in unlucky numbers. Lovell, Jack Swigert and Fred Haise were men of science - highly trained and determined to follow Armstrong and Aldrin to the lunar surface. But things went badly wrong. They were 200,000 miles above the Earth and closing in on their target when they spotted low pressure in a hydrogen tank. It needed a stir to stop the super cold gas settling into layers. Swigert flicked the switch. It should have been a routine procedure but the command module, Odyssey, shuddered. Oxygen pressure fell and power shut down. "I believe we've had a problem here," said Swigert. Lovell had to repeat the message to a stunned Mission Control: "Houston, we've had a problem." It was one of the greatest understatements of all time. The crew were in big trouble - a dramatic explosion had disabled their craft. Haise and Lovell worked frantically to boot up the lunar module, Aquarius. It was not supposed to be used until they got to the Moon. 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