astronomy

Jocelyn Bell Burnell and the Discovery of Pulsars

Jocelyn Bell Burnell and the Discovery of Pulsars

A composite image of the Crab Nebula showing the X-ray (blue), and optical (red) images superimposed. On November 28, 1967, Jocelyn Bell Burnell and Anthony Hewish discovered the first Pulsar, a fast rotating neutron star that emits a beam of electromagnetic radiation. The radiation of a pulsar can only be observed when the beam of emission is pointing toward the Earth, much the way a lighthouse can only be seen when the…
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Sir Arthur Eddington – The Man who Proved Einstein’s General Relativity

Sir Arthur Eddington – The Man who Proved Einstein’s General Relativity

Arthur Eddington (1882 – 1944) On November 22, 1944, British astrophysicist and philosopher Sir Arthur Stanley Eddington passed away. He became famous for his 1919 solar eclipse expedition to Principe, where he conducted astrophysical experiments to give proof for Albert Einstein‘s seminal theory of general relativity. Through hard work and lots of talent, Eddington earned a scholarship to Owens College, where he was able to improve his knowledge in physics. He was…
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Edmond Halley and his famous Comet

Edmond Halley and his famous Comet

Sir Edmond Halley (1656-1742)©Klaus-Dieter Keller, wikipedia On November 8, 1656, Sir Edmond Halley was born. The astronomer, geophysicist, mathematician, meteorologist, and physicist, was best known for computing the orbit of the eponymous Halley’s Comet. Edmond Halley was born in England to the family of a wealthy soap maker. Therefore, Halley was able to receive a proper education and started studying at Queen’s College in Oxford, where he already published his first scientific…
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The Arecibo Radio Telescope – Looking for Extraterrestrial Signals

The Arecibo Radio Telescope – Looking for Extraterrestrial Signals

The Arecibo radio telescope is the largest single-dish telescope in the world. On November 1, 1963, the Arecibo radio telescope, by that time the earth’s largest radio telescope, has been inaugurated in Arecibo, Puerto Rico. It is operated by the company SRI International under cooperative agreement with the National Science Foundation and is also called the National Astronomy and Ionosphere Center, although “NAIC” refers to both the observatory and the staff that…
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Galileo Galilei and his Telescope

Galileo Galilei and his Telescope

Galileo Galilei showing the Doge of Venice how to use the telescope,Fresco at Villa Andrea Ponti, Varese, 1858 On August 25, 1609, Galileo Galilei publicly demonstrated his newly built telescope for the first time to Venetian lawmakers. Besides its astronomical value Galileo’s telescope was also a profitable sideline for him selling telescopes to merchants who found them useful both at sea and as items of trade. Galileo published his initial telescopic astronomical…
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