Definition of asthenosphere : a zone of a celestial body (such as the earth) which lies beneath the lithosphere and within which the material is believed to yield readily to persistent stresses asthenospheric
Fraser: Right. Pamela: And so any time you hear a noise in space, if you hear explosions, thatâs probably your own spacecraft, and the noise is transferring through the hull and through the air in your spacecraft. Other than that, youâre not going to hear explosions.
Nasa plans landing on 280,000mph asteroid travelling towards the Earth. Nasa is planning to land spacemen on an asteroid that is travelling at 28,000mph towards the earth, it emerged today. The rock, which was once considered the most dangerous object in the universe with the explosive power of 84 Hiroshimas, will narrowly miss our planet in 60 years' time.