The Large Hadron Collider experiment, designed to shed light on the cosmos, restarts after 14 months of repairs.

A European satellite launched to study the Earth's water cycle returns its first data, confirming its novel instrument is working well.

Fish reared in water acidified by CO2 may become "fatally attracted" to the smell of their predators, say scientists.

Arguments over hacked climate change e-mails

Smashing! Cern's particle cruncher finally restarts

How engineers repaired the Large Hadron Collider

Engineers have sent proton particles all the way round the Large Hadron Collider (LHC) machine for the first time in more than a year.

Arguments over hacked climate change e-mails

Korean model for Obama as Copenhagen looms

The e-mail system of one of the world's leading climate research units has been breached by hackers.

Two of the longest-serving instruments from the Hubble telescope have taken up residence in a museum in the US.

Giraffes use a small, powerful, supercharged heart to pump blood up the neck to the head, new research reveals.

French researchers say they have found a way of using human embryonic stem cells to create new skin which could help serious burns victims.

Two lions at a zoo have killed a rare white tigress.

Two astronauts from the space shuttle Atlantis have embarked on the first spacewalk of their mission.

The prototype of a solar-powered plane destined for a record round-the-world journey makes its first trip across a runway.

A study of mammoth dung has helped unravel the mystery of what caused the great mammals to die out.

A study of mammoth dung is helping unravel the mystery of what caused the great mammals to die out.

A US judge rules that negligence by army engineers led to massive flooding in part of New Orleans as Hurricane Katrina struck in 2005.

Helena Christensen documents climate change