Analyzing the faint glow left over from the Big Bang, scientists report measuring the age of the cosmos with unprecedented accuracy. They claim the age they calculate, 14 billion years, is accurate to within half a billion years.
Hot and cold spots (red and blue) in cosmic microwave background appear slightly smaller in older cosmos as viewed by telescope (left).
Log in
Subscribers, enter your e-mail address for full access to the Science News archives and digital editions.
