National Solar Observatory predicts a large sunspot for Thanksgiving
Research team 'listens' to changing sound waves from the sun's interior A large sunspot is rotating onto the face of the sun. November 24, 2020 Scientists at the U.S National Science FoundationNational Solar Observatory have predicted the emergence of a new sunspot group just in time for Thanksgiving. Using a technique called helioseismology, the team has been "listening" to changing sound waves from the sun's interior. Recent changes in these sound waves point to the imminent appearance of a new sunspot group, which can now be seen from Earth near the eastern solar limb. "We measured a chang...