“Convection creates the beautiful granular structure seen on the surface of our Sun, but it is hard to see on other stars,” said study coauthor Theo Khouri, a researcher at Chalmers, in a ...

The star, R Doradus, is a red giant roughly 350 times the Sun’s diameter. Its convection cells are dozens of times the size of the Sun itself, and they rise and fall over a period of a few weeks.

Unlike conduction and convection, radiation takes place without ... This is why we can still feel the heat of the Sun even though it is 150 million km away from the Earth. The transfer of infrared ...