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Nature & Science News

Law change call for space flight - A law change is needed before Scotland can be considered as a launch site for commercial space flights, Virgin Galactic says.

Studies 'overstate species risks' - Some large-scale studies appear to overestimate the threats of climate change on biodiversity, a study suggests.

Leaders 'likely' to go to summit - At least 40 world leaders are likely to attend December's UN climate summit in a bid to secure a new global treaty.

Minister 'backs adviser autonomy' - The government will produce guidelines on the independence of its scientific advisers, Science Minister Lord Drayson says.

Horse genome unlocked by science - The genome of a domestic horse has been successfully sequenced by an international team of researchers.

Scientists urge respect on advice - Senior academics call on the UK government to respect the independence and freedom of its scientific advisers.

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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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