Why the atmosphere is hotter than the surface is a big puzzle,” he said.4 centimetres carbon-composite shield, which is designed to withstand temperatures outside the spacecraft of 1,370 degrees Celsius. Humans have sent spacecraft to the Moon, Mars and even distant interstellar space.The probe will have special heat tubes that will radiate heat that permeates the heat shield to open space, “so it does not go to the instruments sensitive to heat”. However, the atmosphere above it is a sizzling two million degrees Celsius. Nasa has designed a 11. But we do not understand how that gets accelerated,” he said. First, the mission will hopefully unveil why the surface of the Sun, called the photosphere, is not as hot as its atmosphere, called the corona. Now, Nasa plans to launch the Solar Probe Plus mission to the Sun which is about 149 million km from the Earth. “We can’t get to the very surface of the Sun,” but the mission will get close enough to answer three important questions, Christian said.Washington: Nasa plans to send its first robotic spacecraft to the Sun next year that is slated to get within six million kilometres of the blazing star to probe its atmosphere.”This is going to be our first mission to fly to the Sun,” said Eric Christian, a Nasa research scientist at Goddard Space Flight Centre. “You would think the farther away you get from a heat source, you would china wholesale garden umbrellas get colder.The scientists also want to know how solar wind gets its speed, ‘Live Science’ reported.”The Sun blows a stream of charged particles in all directions at a million miles an hour.The mission may also ascertain why the Sun occasionally emits high-energy particles that are a danger to unprotected astronauts and spacecraft..According to Nasa, the surface temperature of the Sun is only about 5,500 degrees Celsius
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