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Mystery of the first Americans

Why the first people to reach the Americas weren't ancestors of today's native Americans

• 22 mins

How Babies recognise Language

Babies can recognise language very early, using the left hemisphere of their brain

• 22 mins

Why the Month you were born Matters

How could the month of your birth affect the rest of your life?

• 22 mins

Why more CO2 means more acidic Oceans

How oceans are becoming more acidic as they absorb increased quantities of man-made CO2

• 22 mins

Is there Liquid on Titan?

Can radio telescopes "see" lakes of liquid hydrocarbons on Saturn's moon Titan?

• 22 mins

First Chinese Astronaut

China's first manned space flight, Shenzhou 5, is a success

• 22 mins

Concorde's Last Flight

Last flight of Concorde, the supersonic passenger aircraft

• 22 mins

Spot the Solar Flares

The Sun is producing massive solar flares causing magnetic storms

• 22 mins

Increasing Longevity – in Worms

Scientists increase longevity of worms by blocking hormones that cause ageing

• 22 mins

Seach for Planets cancelled

Scientists protest at ESA's cancellation of the Eddington mission to look for new planets

• 22 mins

New Mystery Meson upsets Particle Theorists

Discovery of a new mystery meson subatomic particle

• 22 mins

Chinese first to approve Gene Therapy Treatment

Chinese are first to approve gene therapy treatment for patients outside clinical trials

• 22 mins

Perfectly preserved Ostracod Shellfish

English fossils contain well preserved soft and hard structures of ancient ostracods

• 22 mins

Mouse Stem Cells make Sperm

Mouse stem cells have been turned into sperm, which in turn have fertilised an egg

• 22 mins

What is the Future now for Science in Iraq?

The prospects for science in Iraq after the capture of Saddam Hussein

• 22 mins

Hot Scientific Topics of 2003

Reviewing some of the main scientific themes of 2003, and the life of John von Neumann

• 22 mins

Listeners' Questions Answered

Studio guests answer listeners' scientific questions

• 22 mins

Indian Science Congress special Report

Report from the Indian Science Congress at Punjab University, Chandigarh

• 22 mins

George W. Bush aims for the Moon – and Mars

US president announces Nasa plans for manned flights to the Moon and Mars

• 22 mins

The Indian Ocean's mountainous Ecology

The ecology of the western Indian Ocean is the focus for international climatologists

• 22 mins

Did Humans catch the Sars virus from Animals?

Was the Sars virus passed to humans from animals in the recent epidemic?

• 22 mins

Unlocking the deadly secret of Bird Flu

Genetic detectives study the flu virus that caused the 1918 pandemic to save lives today

• 22 mins

Why Scientists are sleepless in Seattle

Special edition from the AAAS meeting, the largest general science gathering in the world

• 22 mins

A Step forward in the search for an HIV Treatment?

Will the TRIM5 alpha protein help scientists find a treatment for HIV-Aids?

• 22 mins

Mars was once covered with Water

Mars was once covered in water for a long time

• 22 mins

How female Mice keep making Eggs

Germ stem cells have been discovered in the ovaries of female mice

• 22 mins

Is the sixth Extinction Event already underway?

The sixth mass extinction in geological time is already underway, claim scientists

• 22 mins

Did a smaller jaw Muscle mean a bigger Brain?

Did early human ancestors develop bigger brains because of defective muscle gene?

• 22 mins

Global warming or skating on Greenland's thin Ice Sheet

Report on the state of Greenland's thinning ice sheet

• 22 mins

Space probe sent to check Einstein's Theory

Gravity Probe B sent to check Einstein's theory – and will have the results in 18 months

• 22 mins