The famous US manned deep-submersible Alvin is set for a major upgrade that will allow it to go to 6,500m, giving it access to 98% of the ocean floor.

The concept of free will is in flux in the wake of experiments showing that animals even as simple as flies seem to exert free will in their choices.

Scientists develop a new theory to explain the Solar System's most spectacular mountain range - the giant ridge on Saturnian moon Iapetus.

The government is to try to persuade companies to invest more in low-carbon energy, but some fear it could mean higher bills.

A plan to rescue European financing of the Iter nuclear fusion reactor project has been thrown into uncertainty.