Tanya Lewis

Atom & cosmos: Voyager enters uncharted territory: New frontier may be last before probe hits interstellar space

Life: New contender for oldest dino: African fossil may push line back 15 million years

Humans: Pruney fingers get better grip: Wrinkles may be evolutionary adaptation to wet conditions

Atom & cosmos: First rock from the sun has ice: Mercury's water probably came on asteroids or comets

Atom & cosmos: Martian meteorite is one of a kind: Water-rich rock resembles known areas of Red Planet's crust

Disorder at work: Proteins without a definite shape can still take on important jobs

Health & illness: Sound test predicts coma outcome: Improved auditory response in early days a positive sign

Atom & cosmos: Blobs from sun hit and bounce: Massive balls of gas show superelastic behavior

Earth: Gulf Stream may melt methane: Warm waters threaten to release gas from seabed

Atom & cosmos: Scientists probe fresh meteorite: Rocks found in Morocco hold clues to Mars' atmosphere