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BellaOnline Editor Modern Day Human
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BellaOnline Editor Modern Day Human
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On this day in 1801 - January 1st - Giuseppe Piazzi discovered Ceres.Ceres was the first object discovered in what's now known as the asteroid belt. It was at first considered a planet, then an asteroid, and is now classed as a dwarf planet.
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Joined: May 2010
Posts: 12,055 Likes: 30
BellaOnline Editor Modern Day Human
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BellaOnline Editor Modern Day Human
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On this day in 1925 - January 1st - Edward Hubble read to the American Astronomical Society what would be a ground-breaking paper.He showed that the Andromeda "nebula" wasn't an object in the Milky Way, but a galaxy in its own right. Here is picture of the glass plate on which Hubble discovered a Cepheid variable - marked VAR! - in the Andromeda galaxy. From this he determined that it was too far away to be located in our own galaxy.
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Joined: May 2010
Posts: 12,055 Likes: 30
BellaOnline Editor Modern Day Human
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BellaOnline Editor Modern Day Human
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On this day in 1959 - January 2nd - the Soviet Union's Luna 1 was the first spacecraft to leave the Earth's gravitational field.
Luna 1 passed to within 6000 km of the Moon, and ended up in orbit around the Sun.
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Joined: May 2010
Posts: 12,055 Likes: 30
BellaOnline Editor Modern Day Human
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BellaOnline Editor Modern Day Human
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On this day in 2004 - January 2nd - NASA's Stardust probe encountered Comet Wild.
Stardust collected samples of space dust and comet dust, and returned them to Earth in 2006.
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Joined: May 2010
Posts: 12,055 Likes: 30
BellaOnline Editor Modern Day Human
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BellaOnline Editor Modern Day Human
Joined: May 2010
Posts: 12,055 Likes: 30 |
On this day in 1920 - January 2nd - American author and scientist Isaac Asimov was born.
Asimov was a chemistry professor, but also a prolific writer on many subjects. He's best remembered for his works of science fiction and of popular science, including astronomy.
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Joined: May 2010
Posts: 12,055 Likes: 30
BellaOnline Editor Modern Day Human
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BellaOnline Editor Modern Day Human
Joined: May 2010
Posts: 12,055 Likes: 30 |
On this day in 2004 - January 3rd - NASA's rover Spirit landed on Mars.Along with the Opportunity rover, the rovers' mission was designed to last for just over three months. Spirit was active until 2010.
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Joined: May 2010
Posts: 12,055 Likes: 30
BellaOnline Editor Modern Day Human
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BellaOnline Editor Modern Day Human
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Posts: 12,055 Likes: 30 |
On this day in 1643 - January 4th - Isaac Newton was born.Newton was born on Christmas Day 1642, according to the Julian Calendar then in use. Nearly a century later England adopted the Gregorian calendar, and the equivalent date was ten days later.
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Joined: May 2010
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BellaOnline Editor Modern Day Human
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BellaOnline Editor Modern Day Human
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On this day in 1797 - January 4th - German astronomer Wilhelm Beer was born.
Beer was an amateur astronomer, who with Johannes Heinrich Mädler, published the first map of the Moon (Mappa Salenographica). They also made a map of Mars and calculated the planet's rotation period to within 0.1 second of today's figure.
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Joined: May 2010
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BellaOnline Editor Modern Day Human
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BellaOnline Editor Modern Day Human
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On this day in 2005 - January 5th - Mike Brown's team at Palomar Observatory discovered ErisThe discovery of this distant object that originally appeared to be bigger than Pluto ignited the debate about the definition of a planet. For a time, NASA referred to Eris as the "10th planet", but in the end, both Eris and Pluto became dwarf planets.
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Joined: May 2010
Posts: 12,055 Likes: 30
BellaOnline Editor Modern Day Human
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BellaOnline Editor Modern Day Human
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On this day in 1892 - January 5th - the first successful photograph was taken of an aurora.Early cameras couldn't catch the dim light of an aurora, and long exposures didn't capture the movement. German physicist Martin Brendel and a fellow scientist, on an expedition in northern Norway, took the first successful image, and revolutionized the study of the northern lights.
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