Science and Tech

New method to extract Neanderthal DNA

A new computer-based method to retrieve ancient Neanderthal DNA molecules from fossils despite contamination by modern human DNA has been found. The method showed a fossil to be related to other Neanderthals in Europe.

New light on Grand Canyon formation

                                                                                                               The world famous Grand Canyon took its present form just five to six million years ago — much more recently than previously thought, a new study suggests. Previous studies had claimed it was perhaps 70million years old.

30-year-old puzzle in star formation solved                                                                          .           

Now, observations have confirmed that as the gas cloud around a young massive star collapses, it forms dense filamentary structures that absorb the star's UV radiation and the surrounding nebula flickers like a candle.

Plant compound takes on Alzheimer's in mice

                 

A chemical that's found in fruits and vegetables from strawberries to cucumbers stops memory loss that accompanies Alzheimer's disease in mice. A daily dose prevented progressive memory and learning impairments.                                                                               

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