On this day in 1921 - April 9th - Mary Jackson was born.
Mary Jackson was NASA's first black female engineer. She began as a computer for NASA's predecessor organization, but went on from mathematics to take advanced engineer classes. She worked at Langley Research Center in Hampton, Virginia, for most of her career.
On this day in 1919 - April 10th - John C. Houbolt was born.
Houbolt, an American aerospace engineer, is credited with leading the team behind the lunar orbit rendezvous (LOR) that was used to land humans on the Moon and return them to Earth. Using LOR, NASA saved time and billions of dollars by efficiently using existing rocket technology.
On this day in 2006 - April 11th - ESA's Venus Express was inserted into orbit around Venus.
The mission provided an enormous amount of data on the Venusian atmosphere until ESA concluded it in December 2014. In addition to helping to understand the atmosphere of Venus, it also contributed to an a general understanding of atmospheric dynamics in general, including climate change on Earth.
On this day in 1960 - April 11th - Project Ozma began.
Cornell University astronomer Frank Drake initiated this project. It was a pioneering SETI (Search for ExtraTerrestrial Intelligence) experiment that searched for signs of life in distant planetary systems by monitoring interstellar radio waves.
On this day in 1597 - April 13th - Giovanni Battista Hodierna was born.
Hodierna was a Sicilian astronomer at the court of the Duke of Montechiaro. Pre-dating Messier by over a century, he compiled a sky catalog that included a number of nebulous objects that might be confused with comets.
Last edited by Mona - Astronomy; 05/18/1811:56 AM. Reason: date corrected
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