Radiation within the visible spectrum can appear black if it is low in power – more specifically, lower in power than its ...

"Our Sun (Sol) is marked by a black hexagon, and its orbital path is indicated by a grey solid line (top row only). Alpha Centauri's location and path are shown by a yellow star and a solid blue line ...

Diplomatic Courier editor Jeremy Fugleberg brings you three under–the–radar stories from the Hinterlands: scientists search ...

Sometimes people get a permanent tattoo then later decide they no longer want it. Life situations change or maybe the tattoo ...

If Earth had no atmosphere—like the Moon—there would be no scattering, and the sky would remain black, even in daylight ...

By Michelle Spear When an 84-year-old man in Hong Kong went to hospital with an enlarged prostate, doctors were startled to ...

After decades of study, scientists sound genuinely optimistic about the possibility of detecting primordial black holes, which might explain dark matter.

Toxics in the air from urban wildfires may include dioxins, asbestos, and lead. But testing, until recently, for these air ...

A 2 ton air conditioner is a cooling unit that can remove heat from a room or space of around 800 to 1,000 square feet. It works by circulating cool air while removing warm air, making indoor ...

Data from NASA's Chandra X-ray Observatory reveals that black holes can cool gas to the proper temperature for a cosmic feast.