An Arizona-based astrophotographer has pulled off what may be an unprecedented feat in photography: capturing a skydiver in free fall perfectly aligned with the surface of the sun. Andrew McCarthy, ...

The original version of this story appeared in Quanta Magazine. Our sun is the best-observed star in the entire universe. We see its light every day. For centuries, scientists have tracked the dark ...

Sunburn and heat exhaustion aren’t the only reasons to avoid too much sunshine this summer: Going gray is another consideration. Hair strands, which grow out of glands called follicles, can't change ...

You know the sun can damage your skin, but what about your eyes? Ophthalmologist Jeff Pettey, MD, breaks down the risks of sun exposure to your vision, from painful short-term conditions to long-term ...

To most people, the sun is a steady, never-changing source of heat and light. But to scientists, it’s a dynamic star, constantly in flux, sending energy out into space. Experts say the sun is now in ...

The sun may too bright and too powerful for us to look at with the naked eye, even from nearly 92 million miles away on Earth, but a solar orbiter recently got an unprecedented up-close glimpse of the ...

In a teleconference Oct. 15, representatives from NASA and the National Oceanic and Atmospheric Administration (NOAA) announced that the Sun has reached the peak level in its current cycle of activity ...