color game China, France to launch satellite to better understand the universe
This photo shows the launch platform for the French-Chinese Space Variable Objects Monitor (SVOM) satellite mission in Xichang, in China’s southwestern Sichuan province on June 21, 2024. The Space Variable Objects Monitor (SVOM) is scheduled to blast off on a Chinese Long March 2C rocket on June 22 on a mission to hunt down gamma-ray bursts, the most powerful explosions in the universe. (Photo by ADEK BERRY / Agence France-Presse)
XICHANGcolor game, China — A French-Chinese satellite will blast off Saturday on a hunt for the mightiest explosions in the universe, in a notable example of cooperation between a Western power and the Asian giant.
Developed by engineers from both countries, the Space Variable Objects Monitor (SVOM) will seek out gamma-ray bursts, the light from which has travelled billions of light years to reach Earth.
The 930-kilogram satellite carrying four instruments – two French, two Chinese – will lift off aboard a Chinese Long March 2-C rocket from a space base in Xichang, in the southwestern province of Sichuan.
Article continues after this advertisementGamma-ray bursts generally occur after the explosion of huge stars – those more than 20 times as big as the sun – or the fusion of compact stars.
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The extremely bright cosmic beams can give off a blast of energy equivalent to over a billion suns.
Article continues after this advertisementObserving them is like “looking back in time, as the light from these objects takes a long time to reach us”, Ore Gottlieb, an astrophysicist at the Flatiron Institute’s Center for Astrophysics in New York, told Agence France-Presse (AFP).
Article continues after this advertisement ‘Several mysteries’The rays carry traces of the gas clouds and galaxies they pass through on their journey through space – valuable data for better understanding the history and evolution of the universe.
Article continues after this advertisement“SVOM has the potential to unravel several mysteries in the field of (gamma-ray bursts), including detecting the most distant GRBs in the universe, which correspond to the earliest GRBs,” Gottlieb said.
The most distant bursts identified to date were produced just 630 million years after the Big Bang – five percent of the current age of the universe.
Article continues after this advertisement“We are… interested in gamma-ray bursts for their own sake, because they are very extreme cosmic explosions which allow us to better understand the death of certain stars,” said Frederic Daigne, an astrophysicist at the Institut d’Astrophysique de Paris.
“All of this data makes it possible to test the laws of physics with phenomena that are impossible to reproduce in the laboratory on Earth.”
Once analysed, the data could help to better understand the composition of space, the dynamics of gas clouds or other galaxies.
READ: Japan launches rocket carrying lunar lander, X-ray telescope to explore origins of universe
The project stems from a partnership between the French and Chinese space agencies as well as other scientific and technical groups from both nations.
Space cooperation at this level between the West and China is fairly uncommon, especially since the United States banned all collaboration between NASA and Beijing in 2011.
Race against time“US concerns on technology transfer have inhibited US allies from collaborating with the Chinese very much, but it does happen occasionally,” said Jonathan McDowell, an astronomer at the Harvard-Smithsonian Center for Astrophysics in the United States.
In 2018, China and France jointly launched CFOSAT, an oceanographic satellite mainly used in marine meteorology.
And several European countries have taken part in China’s Chang’e lunar exploration programme.
So while SVOM is “by no means unique”, it remains “significant” in the context of space collaboration between China and the West, said McDowell.
Once in orbit 625 kilometers (388 miles) above the Earth, the satellite will send its data back to observatories.
The main challenge is that gamma-ray bursts are extremely brief, leaving scientists in a race against time to gather information.
Once it detects a burst, SVOM will send an alert to a team on duty around the clock.
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Within five minutescolor game, they will have to rev up a network of telescopes on the ground that will align precisely with the axis of the burst’s source to make more detailed observations.
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