
Space & PhysicsOctober 1, 1982
Historical Eclipses
Reliable records of solar and lunar eclipses go back as far as 750 B.C. They bear on such questions as whether the sun is shrinking or the earth is not spinning as fast as it once did

Historical Eclipses
Reliable records of solar and lunar eclipses go back as far as 750 B.C. They bear on such questions as whether the sun is shrinking or the earth is not spinning as fast as it once did

Historical Supernovas
Early records indicate that seven of these huge stellar explosions were seen over a period of 1,500 years. At the recorded positions of the new stars remnants of the explosions can be observed today