Herself
Europe and the United States are working together on an unprecedented journey to learn more about the impact of the Sun on our planet, to really know what its atmosphere is like and how it affects our environment; since solar radiation increasingly affects our lives and telecommunications.
Herself - NASA Goddard Space Flight Center
It contains 99.9 percent of all the matter in our solar system and sheds hot plasma at nearly a million miles an hour. The temperature at its core is a staggering 27 million degrees Fahrenheit. It convulses, it blazes, it sings. You know it as the sun. Scientists know it as one of the most amazing physics laboratories in the universe.