Gravity: The Key to Leaving the Earth
Scientists are working hard to understand gravity–which is the key to future space travel. When it comes to this subject, they think that Albert Einstein was absolutely right–and completely wrong.
In the Guardian, Robin McKie quotes psysicist Harald Luck as saying, "In his general theory of relativity, Einstein predicted the existence of gravitational waves, which he said would be set off by highly energetic events objects like supernovae or neutron star collisions. However, he also predicted we would never be able to observe these waves because they would be too weak to be detected by the time they reached Earth. We intend to prove him right in the first instance and wrong in the second."
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