Amazing Earth 1

submitted by: scivee-team

A documentary about volcanic eruptions, their causes and effects on Earth and the geological implications of those events in history and in the future - Part 1.

Landing on Mars

submitted by: scivee-team

Gerry Soffen, a Viking Mission Scientist, talks about his memories from the first successful landing on Mars and what it revealed about the planet's surface.Looking back at the dramatic first landing on Mars.