Mount Everest gets all the credit, but Hawaii’s Mauna Kea (an idle volcano that’s been around for, you know, a million years) is technically the world’s tallest mountain. Technically. While it stands 13,800ft above sea level, more than two thirds of the hill is actually submerged underwater, which brings the total height to 33,136ft.
NASA has a new X-ray eye in the sky. The space agency’s latest X-ray telescope was boosted into orbit Wednesday to begin a two-year mission to search for black holes and other hard-to-see celestial objects.
The first batch of data from a NASA mission to map the entire sky has been released to scientists and anyone with access to the Internet.