Post navigation This jawbone from an extinct human species was discovered in a cave in China, and estimated to be around 300,000 years old. It is believed to possibly belong to an unknown branch of hominins that lived in the region during this time, which has been lost to history. This finding is an important contribution to the early history of humankind in East Asia. The largest known planet is TrES-4b, which has a radius 1.69 times that of Jupiter. It also has the greatest mass known, at 3.4 times the mass of Jupiter, making it more than twice as large. TrES-4b is located 1,400 light-years from Earth in the constellation Hercules.