The John Batchelor Show podcast

24: Discovery of a Dangerous Half-Mile Asteroid Near the Sun. Bob Zimmerman discusses the discovery of a large asteroid inside the orbit of Venus, only the second one ever found so close to the sun. The asteroid is about half a mile across and difficult to sp

0:00
2:01
Recuar 15 segundos
Avançar 15 segundos
Discovery of a Dangerous Half-Mile Asteroid Near the Sun. Bob Zimmerman discusses the discovery of a large asteroid inside the orbit of Venus, only the second one ever found so close to the sun. The asteroid is about half a mile across and difficult to spot due to the sun's glare. This raises concern because large asteroids out of sight pose a potential threat. Models suggest solar radiation should clear out small asteroids, but if they are larger, like this one or the previous mile-across discovery, their orbits remain stable.



Mais episódios de "The John Batchelor Show"