22:46 A report has found faulty equipment & the crew's "inability to control the aircraft" caused an AirAsia A320 to crash into the Java Sea last year.

22:11 6 boys aged 10-13 have been killed in Turkey after a fire caused by a suspected electrical fault engulfed the dormitory of their religious school.

20:44 An oil spill in Whangarei Harbour appears to have stemmed from a system failure aboard a cargo ship. It will be monitored overnight.

20:07 Labour says TV3 presenter Heather Duplessis-Allan should be praised, not raided by police for exposing a loophole in our gun laws.

20:06 A 23 year old woman has admitted stealing almost 100 unmarked exam papers from Otago University. She'll be sentenced in February.

Fri, 13 Apr 2012

VIDEO: Why don't those stars move?

Stars in the sky will typically appear to rise and set as the Earth turns. If you look closely at the above time-lapse movie, however, there are points of light that appear stationary. These objects are not stars but human-launched robotic spacecraft that remain fixed high above the Earth's equator. Called geostationary satellites, they don't fall down because they do orbit the Earth -- they just orbit at exactly the same speed that the Earth rotates. The orbital distance where this is possible is much farther than the International Space Station but much closer than the Moon. The video was taken from one of the highest revolving restaurants in the world located on the Mittelallalin in the Swiss Alps. An even closer inspection will show that the geostationary satellites flash with glints of reflected sunlight. The satellites also all appear on a single line - actually the projection of the Earth's equator onto the sky.

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