NASAís Parker spacecraft makes first close approach to sun


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NASAís Parker spacecraft makes first close approach to sun
Associated Press
Published:
November 6, 2018
Updated:
November 6, 2018 1:21 PM EST
In this July 6, 2018 file photo, NASA's Parker Solar Probe sits in a clean room at Astrotech Space Operations in Titusville, Fla., after the installation of its heat shield. Ed Whitman / AP
CAPE CANAVERAL, Fla. ó A NASA spacecraft has made its first close approach to the sun, just 2 1/2 months after liftoff.
The Parker Solar Probe flew within 15 million miles (24 million kilometres) of the sunís surface Monday night. Its speed topped 213,000 mph (342,000 kph) relative to the sun, as it penetrated the outer solar atmosphere, or corona.
No spacecraft has ever gotten so close to our star.
NASA wonít re-establish contact until Parker is far enough from the sun to avoid radio interference. NASAís Nicola Fox says scientists ďcanít wait to get the data.Ē The observations could unlock some of the sunís mysteries.
Assuming it survives the harsh solar environment, the spacecraft will make 23 even closer approaches over the next seven years. The next is in April.
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http://torontosun.com/technology/nas...pproach-to-sun
 
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The Parker Solar Probe flew within 15 million miles (24 million kilometres) of the sun’s surface Monday night.




http://curious.astro.cornell.edu/abo...e-sun-beginner
Corona: about 1 million degrees C loses about 7C/km to be at 400C. It would lose about 100,000C in 15,000km. Making it only 900,000C for however long that part if the trip takes. How can it lose almost all of the heat by the time it is at Mercury (400C) yet can met ice on Mars? 170M km farther