Latest Sky Stories
International Dark Sky Week (IDSW) is kicking off this weekend in an attempt to show the world just how dark our skies can be without light pollution.
In the week that saw the release of the first results from the European Space Agency's Planck satellite, astronomers at the Hartebeesthoek Radio Astronomy Observatory (HartRAO) near Johannesburg are working on a new radio telescope that will also shed new light on the very earliest moments of universe.
Light pollution has been a growing problem recently, and as skylines continue to grow, the night sky becomes dimmer and dimmer. A new shift is taking place in lighting though, and researchers estimate that the color of the night sky may be changing as well.
Sky -- Although almost everyone have seen it, sky is hard to be defined precisely. Generally, sky is the space seen when one looks upward from the surface of a planet. Some people define sky as the denser gaseous zone of a planet's atmosphere. Clouds, rainbows and weather all occur amongst a planet's sky. In astronomy, the sky is divided into many regions, called constellations. The blue colour of the daytime sky results from the selective scattering of light rays. When the sunlight...
- A gift; a largess; a gratuity; a present; a dole.