The Chandra space observatory, launched last month by the US National Aeronautical and Space Administration, has already started transmitting images. It has sent images of the heart of the Crab

Turbulence in the atmosphere is a major problem with Earth-based telescopes. Most modern telescopes take care of this by using adaptive optics, a corrective process in which parts of the telescope

A solar sail may soon shield the Earth against solar storms. The sail will be stationed between the Earth and the Sun and will give warnings of solar storms that cause serious damage to phone

in an ambitious revival of exploration of Mars, two us spacecraft have approached the planet. One spacecraft has studied the atmosphere,

It is possible to identify non productive clouds through satellite transmitted pictures, say Israeli scientists

With the successful placing of

After days of negotiation with a US-based entrepreneur, the Russian Space Agency has changed its mind again about the fate of the Mir space station. After several stay orders, officials now say the

An automated telescope that traces asteroids has discovered a chunk of rock some 40 metres in diameter that is circling the Sun in an orbit close to the Earth's. The asteroid

The search for extraterrestrial life