21:25 Dreamworld is assuring the public the theme park was fully compliant with all required safety certifications.

20:32 A British Airways flight was forced to make an emergency landing after almost all of its crew became sick

20:30 A man has been arrested and charged after a violent assault on a woman in the Auckland suburb of Mt Albert

20:15 A Kiwi mum was one of four killed in a theme park ride accident on the Gold Coast, her 10 year old son was thrown to safety at the last minute.

17:27 A 47 year old Dunedin man has been charged with murder after the discovery of a 66-year-old man's body at a Brockville address this morning.

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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