Even if Earth does survive, it won’t be pretty. The temperature of our planet will be about 1,300 degrees C, hot enough to ...

But all known chemical and gravitational sources of energy were too short-lived. A revolution came in the 1930s, ... Recently other discoveries about the Sun’s core have come to light.

You may know them by the acronym ROY G BIV. Together, they make the white light you see when the sun -- the main source of blue light -- is shining. Fluorescent and LED (light-emitting diode ...

Learn how to get the most vitamin D from the sun, and other sources, ... (UV) light. As such, this means using sunscreen may slightly limit the body’s ability to make vitamin D.

A well-known benefit of sun exposure is that it triggers the body to produce vitamin D, which helps to build and maintain ...

Blue light — from the sun, fluorescent lights, or your phone and other screens — sends signals to your brain to wake up. Learn how it can interfere with sleep.

The European Space Agency's Solar Orbiter captured the first-ever images of the sun's south pole in March, which were released this week.