One of the really big challenges in anthropology is to date accurately the arrival of humans in the different continents. New results, to be published in a forthcoming issue of the Journal of Quaternary Science, show that humans arrived in Australia a lot earlier than was previously thought.

It is generally argued that humans evolved in Africa and then spread out over the other continents progressively through time, arriving in the most distant, such as Australasia, relatively recently. The

One of the more controversial environmental issues, which emerged in the final years of the Soviet era, was the plan to dam and reverse the flow of north-flowing rivers in order to irrigate the dry southern steppes. This scheme was roundly criticised by scientists and environmentalists at the time because of fears for the impact on the Arctic Ocean and global climate. It now appears that nature performed this experiment some 90,000 years ago.

This months issue of the Journal of Quaternary

ESA’s new micro-satellite PROBA has captured its first test images of the Earth’s surface using its small but powerful optical instrument, just two months after its launch from the Indian equator.

PROBA (Project for On Board Autonomy), the size of a small box and in orbit 600 km above the Earth’s surface, has provided scientists with its first detailed environmental images thanks to CHRIS – a Compact High Resolution Imaging Spectrometer – the main payload on the 100 kg European spacecraft.

A novel research project is looking at ways to recycle plastic bottles for use in the fashion industry in a bid to halt the landfill crisis.

Although recycled PET (Polyethylene terepthalate) has been used in a limited way in the fashion industry, Northumbria University PhD student Yukie Nakano is working to identify the barriers affecting the wider introduction of recycled textile products. Yukie, who is also a research assistant in the Centre for Design Research, is also experimenting with

Combining two separate observations of cells in brain tumours could enable doctors to improve the success rate of radiotherapy. Speaking today (23 January) at the Institute of Physics Simulation and Modelling Applied to Medicine conference in London, chemical engineer Dr Norman Kirkby from the University of Surrey will explain how using the correct time intervals between a sequence of low dose radiotherapy sessions could increase the chance of curing brain cancers that tend to resist treatment.

Researchers at the University of Bristol have discovered that not all babies who wheeze will develop asthma in later life.

Dr Andrea Sherriff and asthma experts from the Institute of Child Health in Bristol and St George`s Hospital Medical School in London studied around 10,000 children taking part in the Children of the 90s project in Bristol.

The researchers discovered that over 60% of babies who wheezed in the first six months had stopped by 3½ years of age. When they we