United States Air Force researchers are developing optics for a space telescope that uses a thin plastic membrane rather than a conventional mirror.

Using "wrong-time" electricity from renewables to turn air into liquid may offer a solution to one of the great challenges in engineering - how to store energy.

An operation used as an alternative to a full hip replacement has a high failure rate and, in most instances, should not be offered, warn doctors.

UK mobile operators are to take part in crunch talks over the roll-out of 4G in the country in an attempt to avoid further delays.

A young fin whale, 10m (33ft) in length, dies after beaching on a shingle bank off the Suffolk coast.

Australia's Great Barrier Reef has lost more than half its coral cover in the past 27 years, according to a new study.

Tree rings from eight cedar trees in Bolivia have helped UK-based researchers unlock the 100-year rainfall history across the Amazon basin.

UK engineers are developing a system to harpoon rogue or redundant satellites and pull them out of the sky.