Geography Borders & Maps Africa is larger than the US, China, India, and most of Europe combined 70 sec read
Space Cosmology Distant galaxies are receding faster than light — and we can still see them 65 sec read
Geography Landmarks & Wonders You cannot see the Great Wall of China from space with the naked eye 75 sec read
Earth & Climate Natural Disasters Iceland's Laki fissure cracked open and poisoned a hemisphere 45 sec read
Geography Landmarks & Wonders Roald Amundsen's team became the first to reach the South Pole 45 sec read
Technology Engineering Roman concrete heals its own cracks — and we only just learned how 65 sec read
Nature & Animals Plants & Fungi The largest organism on Earth is a honey fungus in Oregon 45 sec read
