Rare 4000 year comets can cause meteor showers on Earth

New 96 million-year-old fossil represents oldest side-necked turtle in north america

New Species of Ancient Turtle Discovered: 96 Million-Year-Old Fossil Is Earliest Evidence of Sidenecked Turtles in North America

A new mission to remove space junk from Earth’s orbit. 3,000 inactive satellites are still in space - the big space clean-up - and why it matters.