Autumnal equinox explained: Why fall begins today

Monday, September 22, 2014 - 11:20 in Biology & Nature

Summer is officially over at 10:29 PM EDT this year, but it doesn't always fall on the same date

Read the whole article on CBSNews - Science

More from CBSNews - Science

Learn more about

Latest Science Newsletter

Get the latest and most popular science news articles of the week in your Inbox! It's free!

Check out our next project, Biology.Net