New research finds 'geologic clock' to help determine moon's age

An international team of planetary scientists determined that the Moon formed nearly 100 million years after the start of the solar system, according to a paper to be published April 3 in Nature. This conclusion is based on measurements from the interior of the Earth combined with computer simulations of the protoplanetary disk from which the Earth and other terrestrial planets formed.

Supernova blast provides clues to age of binary star system

Data from NASA's Chandra X-ray Observatory has revealed faint remnants of a supernova explosion and helped researchers determine Circinus X-1 -- an X-ray binary -- is the youngest of this class of astronomical objects found to date.

Grand Canyon formed during age of dinosaurs

The Grand Canyon is dramatic enough today - but imagine it with roaming dinosaurs. It now appears that it's been around for 70 million years, a good 65 million longer than believed.

Solar system 'not so special as thought'

Our solar system didn't, as previously thought, take twice as long as most to form, new research shows.

Antidepressant use jumps by 400%

The rate of antidepressant use in the United States skyrocketed by nearly 400% over the past decade - with 11% of Americans aged 12 and over taking antidepressant medication. 

'Longevity gene' is nothing of the sort

British scientists have poured cold water on US research that claimed to have identified a gene responsible for ageing.

Moon may be millions of years younger than thought

A new analysis of a piece of lunar rock indicates that the moon is much younger than previously thought - or else scientists have been dramatically wrong about the way in which it was formed.

Test can tell suspect's age from one drop of dried blood

A new test has made it possible to tell a person's age to within nine years using a just one drop of blood, in what could potentially be an important tool to catch criminals.

Earth may be younger than previously believed

Creationists still won't like it, but a new study indicates that the Earth is rather younger than previously believed - up to 70 million years younger, says the team.