In 1839, the president of Harvard University invited William Bond to move into a house on campus and, by virtue of bringing along his own astronomical equipment, become the university’s first astronomer in residence. With public interest spurred by the 1835 passage of Halley’s Comet and the Comet of 1843, Harvard soon had enough moneyContinue reading "July 16, 1850: Bond and Whipple photograph Vega"

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Born July 15, 1943, Jocelyn Bell Burnell is a British astrophysicist best known for her discovery of pulsars. In 1967, when she was a graduate student in radio astronomy at the University of Cambridge, Bell Burnell noticed “scruff” in the data she was reviewing from the Mullard Radio Astronomy Observatory. Bell Burnell jokingly called thisContinue reading "July 15, 1943: Birth of Jocelyn Bell Burnell"

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New Horizons launched in January 2006, and by July 14, 2015, it had reached its primary goal: Pluto. The first spacecraft to study Pluto up close, it conducted measurements of Pluto’s atmosphere, mapped the surface geology, observed Pluto’s moons. New Horizons also investigated the dwarf planet’s interior structure, adding support to the theory that PlutoContinue reading "July 14, 2015: New Horizon arrives at Pluto"

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