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January 3 Science History

Science History of January 3


Learn about the history of science by reading about the significant scientific events that took place on this day in history.

2004 - Mars rover Spirit lands on Mars.

Mars Spirit Rover
NASA's Mars Exploration Rover landed on the surface of Mars. It was designed to act as a wandering robotic geologist to sample the soil in the area near its lander. The original plan was for the rover to travel for 40 meters a day with a lifetime range of 1 kilometer, but is still operational as of its six year anniversary.

1919 - First artificial transmutation of an element.

Ernest Rutherford
Ernest Rutherford became the first to transmute one element into another. He bombarded nitrogen atoms with alpha particles to create oxygen using the reaction:

α + 14N → 17O + 1p

1906 - William Wilson Morgan was born.

Morgan was an American astronomer who invented the cD classification system of galaxy clusters. He also produced the first direct evidence the Milky Way Galaxy was a spiral arm galaxy.

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