News
- Humans
Periodic table gets some flex
IUPAC committee replaces fuzzy atomic weights with more accurate ranges
- Space
Space rock surprise
Meteorite analysis suggests it may be possible to make amino acids in the absence of water, boosting the chances of finding life elsewhere in the universe.
- Life
Gene genesis
About a quarter of present-day life's DNA blueprint had been sketched out by 2.8 billion years ago, a new analysis finds.
- Animals
Female chimps play with ‘dolls’
Youngsters mimic mothering by cradling sticks, reigniting debate over sex differences in toy choices.
- Space
Cosmic reincarnation idea may be dead
Cosmological patterns that were recently put forth as evidence for a pre–Big Bang universe are easily explained by current theory, critics say.
