Spacetime With Stuart Gary

SpaceTime Series 27 Episode 128*Dating the Moon's Oldest Impact CraterScientists have pinpointed the edge of the massive South Pole-Aitken Basin, the largest and oldest known impact crater on the Moon, dating it to over 4.32 billion years old. By analysing a lunar meteorite, researchers have concluded that this impact site is around 120 million years earlier than the previously believed intense period of impact bombardment. These findings provide a clearer picture of the Moon's early impact history and have implications for understanding Earth's early conditions.*Recreating the Sound of Earth's Magnetic Polar FlipWith evidence suggesting that Earth's magnetic poles are about to flip, scientists have recreated what they believe could be the sound of this event. Earth's magnetic field, vital for life, is generated by the planet's molten outer core. The recreated soundscape provides an audio insight into the geomagnetic reversals, which occur roughly every 250,000 years, with the last flip occurring 770,000 year