Radiocarbon dating revealed one shark was 73 years old. Sharks that live long and mature late are more sensitive to fishing pressure than previously thought.
"Our discovery enables us to make a journey through time and to revisit these ancient reptiles using their own biomolecules." - Per Uvdal, research team member.
"It's not practical to talk about powering a planet with energy stored in batteries. It's more reasonable to store energy in the chemical bonds of molecules." - Tom Meyer
These sun-like stars that are moving at speeds of more than a million miles per hour relative to our galaxy - fast enough to escape its gravitational grasp.
Cool image of the landing site of China's moon mission, taken by a NASA's Lunar Reconnaissance Orbiter. Also, a word on first science results from Chang'e.
The perfectly-preserved scene is from the mid-Cretaceous, when flowering plants were changing the face of the Earth forever, adding beauty, biodiversity and food.
The EarthSky team has a blast bringing you daily updates on your cosmos and world. We love your photos and welcome your news tips. Earth, Space, Sun, Human, Tonight. Since 1994.