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BellaOnline Editor Renaissance Human
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On this day in 1857 – September 10th – American astronomer James Keeler was born in La Salle, Illinois.
Keeler was the director of the University of Pittsburgh's Allegheny Observatory in 1891, and later of Lick Observatory in California. Among other things, he was known for his studies of the rings of Saturn, confirming that Saturn’s ring system is not a solid unit, and for expanding astronomers' understanding of nebulae through an extended series of photographs using a large telescope.
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BellaOnline Editor Renaissance Human
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On this day in 2011 – September 10th – NASA launched the two small spacecraft GRAIL A (Ebb) and GRAIL B (Flow).
The Gravity Recovery and Interior Laboratory (GRAIL) mapped the gravitational field of the Moon in unprecedented detail.
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BellaOnline Editor Renaissance Human
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On this day in 1717 – September 11th – Swedish astronomer Pehr Wilhelm Wargentin was born in Sunne, Sweden.
He was the first director of the Stockholm Observatory, and is probably best remembered today for his extensive study and observation of Jupiter’s satellites.
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BellaOnline Editor Renaissance Human
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On this day in 1877 – September 11th – English astrophysicist and mathematician James Jeans was born in Ormskirk, Lancashire.
Jeans made major contributions to the early understanding of stellar radiation and stellar evolution.
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Joined: May 2010
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BellaOnline Editor Renaissance Human
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BellaOnline Editor Renaissance Human
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On this day in 1985 – September 11th – the International Cometary Explorer (ICE) became the first spacecraft to make a flyby of a comet.
It passed through the plasma tail of comet Giacobini-Zinner within about 7,800 km (4,800 mi) of the nucleus.
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Joined: May 2010
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BellaOnline Editor Renaissance Human
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BellaOnline Editor Renaissance Human
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On this day in 1997 – September 11th – NASA's Mars Global Surveyor arrived at Mars.
It was a global mapping mission that formed part of the larger Mars Exploration Program. NASA officially ended the mission in January 2007 following an irreparable communications failure.
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BellaOnline Editor Renaissance Human
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BellaOnline Editor Renaissance Human
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On this day in 1959 – September 12th – the Soviet spacecraft Luna 2 was launched to the Moon.
The following day Luna 2 became the first human object to land on another celestial body.
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Tiger
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Tiger
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Those were exciting days -
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Joined: May 2010
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BellaOnline Editor Renaissance Human
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BellaOnline Editor Renaissance Human
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On this day in 1970 – September 12th – the Soviet spacecraft Luna 16 was launched to the Moon.
It was the first robotic probe to land on the Moon and return a sample of lunar soil to Earth.
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Joined: May 2010
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BellaOnline Editor Renaissance Human
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BellaOnline Editor Renaissance Human
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On this day in 1915 – September 14th – John Lowry Dobson was born in Beijing, China.
The American amateur astronomer, who grew up in the San Francisco area, was a popularizer of astronomy. He's best known for having designed and promoted a quality telescope that could be made using inexpensive, readily available materials. The Dobsonian telescope meant that amateur astronomers could afford a portable instrument of a size and aperture that would otherwise be beyond their means.
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Tote Bags
by Cheryl - Sewing Editor - 03/15/23 12:23 PM
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