The Sun's Surface Is a Boiling Sea of Grains — A Ground Telescope Just Mapped Its Magnetism at 30 km
The Daniel K. Inouye Solar Telescope, the largest solar telescope on Earth, has resolved features as small as 30 km on the Sun's surface, 150 million km away. Texas-sized granules on a boiling face, magnetic threads just 20 km wide. SORABUMI explains how a ground-based instrument managed to see that clearly.