The black lines in the Sun's spectrum are caused by gases on, or above, the Sun's surface that absorb some of the emitted light. Every gas (such as helium, hydrogen, oxygen, and so on) has a very ...

The solar dynamo that drives sunspots and solar flares could be located near the surface of the sun scientists find, solving a 400-year-old solar mystery and providing a weird link to black holes.

The Sun won’t become a black dwarf for trillions of years, and even the oldest white dwarfs have not had time to cool enough to become black dwarfs yet. RJHall, Chrkl/Wikimedia Commons.