Nature & Science News

'Jules Verne' begins final voyage - Europe's space freighter undocks from the International Space Station after completing its mission to the orbiting platform.

Universal flu vaccine tests start - A universal flu vaccine which could mean an end to the annual flu jab is being trialled on UK volunteers.

Rosetta probe makes asteroid pass - Europe's Rosetta space probe makes a close pass of asteroid Steins, taking pictures and recording other scientific data.

Sea level rise by 2100 'below 2m' - Natural restrictions on the way glaciers move means sea level rise above 2m this century is very unlikely, researchers say.

Mammoths moved 'out of America' - Ancient DNA evidence points to the last Siberian woolly mammoths having originated in North America.

Bumblebees outwit robotic spiders - Bumblebees learn from their encounters with camouflaged crab spiders and adapt their foraging strategy.

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GPS FAQ

What is the Global Positioning System?

The Global Positioning System (GPS) is a constellation of U.S. Government Satellites providing the most advanced and accurate positioning and navigation service in the world. Equipped with atomic clocks, twenty-four GPS satellites orbit 12,000 miles above the earth transmitting the exact time and their position in space.

What is a GPS receiver?

A GPS receiver is an electronic device that listens to satellite signals and uses the information to determine and display the receiver's location, speed, altitude and heading.

What is a GPS waypoint?

A GPS waypoint is a navigational fix on a point of reference. The GPS waypoint is oftentimes provided as a set of longitude and latitude coordinates in the "degree, minute, second" format.

What is a WGS 84?

WGS 84 is the acronym that represents the words, "World Geodetic Survey 1984". WGS 84 is one of the most widely accepted datums.

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