A Tiny Sun in a Jar Is Shedding Light on Solar Flares

From 1812-1814, Joseph Fraunhofer studied the spectrum of solar light passing through a thin slit and recorded 500 dark lines. Newton missed seeing dark lines in 1666 because he shone light from the whole solar disk through a circular hole into his prisms

Hidden lights on the sun could help crack solar atmosphere mystery

How Was the Solar System Formed? An Ancient Asteroid Is Helping Us Learn