A”dead” satellite is expected to fall to Earth this week
"Since the spacecraft's reentry is cannot be maneuvered, pinpointing the exact location and time of reentry, as well as the start of disintegration, is impossible"
Earth’s mysterious core appears to be leaking, leaving scientists baffled
The study suggests the Earth's core may be leaking the rare helium, upheaving the belief that the giant ball of molten iron at the center of our planet is sealed away
Humans have a third set of teeth – New medicine may help them grow
They could be ready by 2030
