Nowadays, the dark of night is interspersed with the light of stars. But before the stars were born, did light shine at the ...

Light from the Sun takes about 5 and 1/2 hours to reach it and roughly the same time to return to Earth. By the time the light reaches us, it has spread out so much that the planet looks very dim ...

In March 2022, the craft imaged the region inside a coronal hole near the Sun’s south pole in ultraviolet light. Within the hole, researchers discovered numerous short-lived jets, ...

UK scientists have received approval to soon test whether “dimming” the light from the sun will combat global warming — a strategy some critics have called "barking mad." ...

A sun lamp is a unique light that mimics natural outdoor light. Bright light therapy may help seasonal affective disorder and other conditions, such as depression.

The first light image from PUNCH’s WFI shows a broad region of sky out to about 45° from the Sun (intentionally blocked by the instrument’s baffle at bottom).

To get through the hottest days of summer, here's how to read the UV index so you know when the sun is most dangerous.

The Sun, as you may have gathered, is pretty hot. Its surface clocks in at around 5,500 degrees Celsius (10,000 degrees Fahrenheit).While it would take a big lens to focus the light here on Earth ...