For much of the past decade, Andrew McCarthy has been exploring the universe—albeit from his backyard in Arizona. Using telescopes with specialized filters, planetary cameras, and astro-specific ...

New observations are helping scientists peer beneath the Sun’s surface, revealing where its magnetic activity may truly begin ...

Every eleven years, the sun's magnetic field flips. Sunspots—dark, cooler regions on the sun's surface that mark intense ...

The powerful magnetic field belonging to the sun is generated far beneath the visible surface.

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, ...

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 ...

Sun spots on your face can be reminders of a summer spent hiking, swimming or relaxing outdoors. But those marks are also signs of sun damage. And while there are ways to reduce the look of them, it's ...