Tereza is a London-based science and technology journalist, aspiring fiction writer and amateur gymnast. Originally from Prague, the Czech Republic, she spent the first seven years of her career working as a reporter, script-writer and presenter for various TV programmes of the Czech Public Service Television. She later took a career break to pursue further education and added a Master's in Science from the International Space University, France, to her Bachelor's in Journalism and Master's in Cultural Anthropology from Prague's Charles University. She worked as a reporter at the Engineering and Technology magazine, freelanced for a range of publications including Live Science, Space.com, Professional Engineering, Via Satellite and Space News and served as a maternity cover science editor at the European Space Agency.
," Yinuo said, referencing streams of charged particles escaping from the atmospheres of stars including our sun."In the case of these stars, the solar winds are more like a hurricane. When the stars get to a certain distance from each other, the hurricanes combine, and we see these fireworks, these puffs of dust."
The astronomers expected those circular puffs of dust to drift away from the star pair at a uniform speed. In the vacuum of space, there is nothing to slow the dust down, and so the shells should continue to ripple away into the surroundingHowever, when the researchers looked at observations of WR140 made over the past 16 years by the, one of the largest telescopes on Earth, they found that the dust was actually picking up speed as it traveled.
"We have always known that the [dust shells] expand quickly, but we didn't know that the expansion gets quicker and quicker," Yinuo said. The researchers believe that the dust gets the additional push from the immensely bright starlight produced by the WR140 binary star, which is about a million times brighter than the sun.
"These stars give out a very strong light," Yinuo said."And photons carry momentum, which can interact with matter, so the light is pushing on the dust and makes it accelerate."propulsion, which spacecraft like the LightSail 2 mission that launched in 2019 have used to orbit Earth. However, astronomers have never observed light pushing matter in another star system until now.
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