Helen Gavaghan

Technology

Technology: Satellite to probe the roof of the sky

Hubble's gyros put NASA in a spin

Journal rekindles row over Silver Springs monkeys

Mission to Mars will need nuclear power

Technology

Technology: Star wars gives a clear view of the sky

Intercepting the messengers of cosmic violence: Shuttle repairs permitting, NASA's second great space observatory will be launched soon. It will search the Universe for gamma rays - generated by the most violent events in the cosmos

Infrared: the astronomer's favourite wavelength

Cut-price space station runs out of steam

Congress to smooth path for nuclear power?

Review: Law defines the limits of space

Technology

Technology: The dangers faced by ships in port

Human error in the air: The report on the M1 plane crash at Kegworth last year underlines the importance of the 'human factor' for safety