Spacecraft Takes Closest Images Ever of the Sun
2020-07-22
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1A European and NASA spacecraft has sent back the closest pictures ever taken of the sun's surface.
2They show the surface has thousands of small solar flares, or what scientists are calling "campfires."
3Scientists released the first images taken by Solar Orbiter last week.
4The spacecraft was launched from Cape Canaveral, Florida in February.
5The orbiter was around 77 million kilometers away from the sun --about halfway between Earth and the sun -- when it took the pictures.
6Solar Orbiter's pictures are the first images from so close to the sun's surface.
7They show colored swirls - bright yellow and dark gray.
8Daniel Müller is a European Space Agency project scientist.
9He told The Associated Press (AP) that the research team had to create a new term for the small flares: campfires.
10Müller described the many "campfires" as quite possibly "the tiny cousins of the solar flares that we already know."
11These small flares could help explain why the sun's outer covering -- the corona -- is 300 times hotter than the star's surface.
12But scientists are waiting for more information from Solar Orbiter's other instruments to know for sure.
13David Berghmans is with the Royal Observatory of Belgium.
14He was the lead scientist who developed the instrument that took the images.
15Berghmans told the AP that, "When the first images came in, my first thought was, 'This is not possible - it can't be that good.'"
16He added, "It was really much better than we expected, but what we dared to hope for."
17The $1.5 billion spacecraft will move even closer to the sun's surface in the next two years.
18The spacecraft will change its orbit as the mission goes on.
19This will make it possible for Solar Orbiter to take the first pictures of the solar poles.
20Solar Orbiter also carries plasma-sampling instruments to offer researchers additional information about the sun.
21Project scientist Holly Gilbert notes, "That combination [of instruments] really allows us to make links and connections to what's happening on the sun and what's happening at the spacecraft."
22Gilbert is with NASA, the U.S. government's civilian space program.
23Solar Orbiter's main mission of examining the sun's polar areas will help researchers understand the causes of solar wind - electrically charged particles that go through our solar system.
24Solar wind can affect satellites and electronics on Earth.
25"This is just the beginning of the long epic journey of Solar Orbiter," Müller said.
26I'm John Russell.
1A European and NASA spacecraft has sent back the closest pictures ever taken of the sun's surface. They show the surface has thousands of small solar flares, or what scientists are calling "campfires." 2Scientists released the first images taken by Solar Orbiter last week. The spacecraft was launched from Cape Canaveral, Florida in February. 3The orbiter was around 77 million kilometers away from the sun --about halfway between Earth and the sun -- when it took the pictures. 4Solar Orbiter's pictures are the first images from so close to the sun's surface. They show colored swirls - bright yellow and dark gray. 5Daniel Müller is a European Space Agency project scientist. He told The Associated Press (AP) that the research team had to create a new term for the small flares: campfires. 6Müller described the many "campfires" as quite possibly "the tiny cousins of the solar flares that we already know." 7These small flares could help explain why the sun's outer covering -- the corona -- is 300 times hotter than the star's surface. But scientists are waiting for more information from Solar Orbiter's other instruments to know for sure. 8David Berghmans is with the Royal Observatory of Belgium. He was the lead scientist who developed the instrument that took the images. Berghmans told the AP that, "When the first images came in, my first thought was, 'This is not possible - it can't be that good.'" 9He added, "It was really much better than we expected, but what we dared to hope for." 10The $1.5 billion spacecraft will move even closer to the sun's surface in the next two years. The spacecraft will change its orbit as the mission goes on. This will make it possible for Solar Orbiter to take the first pictures of the solar poles. 11Solar Orbiter also carries plasma-sampling instruments to offer researchers additional information about the sun. 12Project scientist Holly Gilbert notes, "That combination [of instruments] really allows us to make links and connections to what's happening on the sun and what's happening at the spacecraft." 13Gilbert is with NASA, the U.S. government's civilian space program. 14Solar Orbiter's main mission of examining the sun's polar areas will help researchers understand the causes of solar wind - electrically charged particles that go through our solar system. Solar wind can affect satellites and electronics on Earth. 15"This is just the beginning of the long epic journey of Solar Orbiter," Müller said. 16I'm John Russell. 17The Associated Press and Reuters reported this story. John Russell adapted the reports for VOA Learning English. George Grow was the editor. 18_____________________________________________________________ 19Words in This Story 20NASA - n. short for the National Aeronautics and Space Administration, the government agency responsible for the U.S. civilian space program 21solar flare - n. a short burst of radiation from the sun's surface 22swirl - v. to flow or move, like the wind, in the space of a circle 23cousin - n. something related to another 24dare - v. to be brave enough to face or do something; to not be too afraid to do something 25mission - n. an important trip or project 26pole - n. one of two or areas in a magnetized field; either of two related opposites 27plasma - n. technical a substance that is similar to a gas but that can carry electricity 28We want to hear from you. Write to us in the Comments Section.