Here's The Most Accurate Measurement Of The Universe's Expansion Yet

How much has the universe expanded and how quickly? A pair of new analyses yields the most precise answer to that question we've ever had. » 4/07/14 6:00pm 4/07/14 6:00pm

This is the most complete map of the night sky ever assembled

The most massive 3D map of the night sky has been released. It contains a trillion pixels and would require 500,000 high-definition TVs to view in its entirety. These images represent just the tiniest fraction of the full map. » 1/11/11 2:12pm 1/11/11 2:12pm