Magnetism in Ancient Crystals Reveals When Earth's Inner Core Emerged

"Statement from James Van Allen on radiation effects" - Doubts regarding the Moon landings because of the Van Allen radiation belts show up even here. Figure it's worth a post giving the opinion of the belts' discoverer, after whom they were named.

Scientists discover places on the moon where it's always 'sweater weather'

How seriously should we take Russia's latest threat to leave the ISS?