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Clifford Cash

Clifford Cash

  • I have read that in our distant past the Earth has been bombarded by asteroids and that a substantial amount of material from the explosions was thrown out into space. It is said that much of that material ended up on the moon and even Mars. If that is true and if we find life on Mars, will we be able

    I have read that in our distant past the Earth has been bombarded by asteroids and that a substantial amount of material from the explosions was thrown out into space. It is said that much of that material ended up on the moon and even Mars. If that is true and if we find life on Mars, will we be able to know that it did not originate on Earth?