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RickStudent, Philosopher, Writer, Developer

Georg Cantor — early 1900s
Photo Credit: By Unknown - http://i12bent.tumblr.com/post/3622180726/georg-cantor-german-mathematician-and-philosopher, Public Domain, https://commons.wikimedia.org/w/index.php?curid=15764397

Georg Cantor early 1900s

Pierre Gassendi —
Photo Credit: By Louis-Édouard Rioult - Œuvres complètes de Voltaire – le siècle de Louis XIV, Public Domain, https://commons.wikimedia.org/w/index.php?curid=1478315

Pierre Gassendi

Mul.Alpin Tablet — dated 686 BC but likely compiled around 1000 BC
Photo Credit: De Desconocido - http://images.math.cnrs.fr/Revue-de-presse-avril-2012.html?lang=fr, Dominio público, https://commons.wikimedia.org/w/index.php?curid=67955717

Mul.Alpin Tablet dated 686 BC but likely compiled around 1000 BC

Mercury — Enhanced-color image of Mercury from first MESSENGER flyby. NASA/JPL.Edited version of Mercury in color - Prockter07.jpg by jjron.
Photo Credit: By NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington - , Public Domain, https://commons.wikimedia.org/w/index.php?curid=24301424

Mercury Enhanced-color image of Mercury from first MESSENGER flyby. NASA/JPL.Edited version of Mercury in color - Prockter07.jpg by jjron.

The first true color image of Mars taken by the OSIRIS instrument on the ESA Rosetta spacecraft during its February 2007 flyby of the planet. The image was acquired on 24 February 2007 at 19:28 CET from a distance of about 240 000 km; image resolution is about 5 km/pixel.

Mars — The first true color image of Mars taken by the OSIRIS instrument on the ESA Rosetta spacecraft during its February 2007 flyby of the planet. The image was acquired on 24 February 2007 at 19:28 CET from a distance of about 240 000 km; image resolution is about 5 km/pixel.
Photo Credit: By ESA - European Space Agency & Max-Planck Institute for Solar System Research - http://www.esa.int/spaceinimages/Images/2007/02/True-colour_image_of_Mars_seen_by_OSIRIS, CC BY-SA 3.0-igo, https://commons.wikimedia.org/w/index.php?curid=56489423

Mars The first true color image of Mars taken by the OSIRIS instrument on the ESA Rosetta spacecraft during its February 2007 flyby of the planet. The image was acquired on 24 February 2007 at 19:28 CET from a distance of about 240 000 km; image resolution is about 5 km/pixel.

Jupiter — Full-disc image of Jupiter taken on 21 April 2014 with Hubble's Wide Field Camera 3 (WFC3).
Photo Credit: By NASA, ESA, and A. Simon (Goddard Space Flight Center) - http://www.spacetelescope.org/images/heic1410a/ or http://hubblesite.org/newscenter/archive/releases/2014/24/image/b/, Public Domain, https://commons.wikimedia.org/w/index.php?curid=32799232

Jupiter Full-disc image of Jupiter taken on 21 April 2014 with Hubble's Wide Field Camera 3 (WFC3).

Full Moon photograph taken 10-22-2010 from Madison, Alabama, USA. Photographed with a Celestron 9.25 Schmidt-Cassegrain telescope. Acquired with a Canon EOS Rebel T1i (EOS 500D), 20 images stacked to reduce noise. 200 ISO 1/640 sec.

Full Moon — Full Moon photograph taken 10-22-2010 from Madison, Alabama, USA. Photographed with a Celestron 9.25 Schmidt-Cassegrain telescope. Acquired with a Canon EOS Rebel T1i (EOS 500D), 20 images stacked to reduce noise. 200 ISO 1/640 sec.
Photo Credit: By Gregory H. Revera - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=11901243

Full Moon Full Moon photograph taken 10-22-2010 from Madison, Alabama, USA. Photographed with a Celestron 9.25 Schmidt-Cassegrain telescope. Acquired with a Canon EOS Rebel T1i (EOS 500D), 20 images stacked to reduce noise. 200 ISO 1/640 sec.

The Thomas Harriot Plaque in the grounds of Syon House (W. London) —
Photo Credit: By The group organising the Telescope 400 event (July 2009) - I am a member. - The group organising the Telescope 400 event (July 2009), CC0, https://commons.wikimedia.org/w/index.php?curid=16380312

Media Contributed by Rick

RickStudent, Philosopher, Writer, Developer

Georg Cantor early 1900s

Pierre Gassendi

Mul.Alpin Tablet dated 686 BC but likely compiled around 1000 BC

Mercury Enhanced-color image of Mercury from first MESSENGER flyby. NASA/JPL.Edited version of Mercury in color - Prockter07.jpg by jjron.

Mars The first true color image of Mars taken by the OSIRIS instrument on the ESA Rosetta spacecraft during its February 2007 flyby of the planet. The image was acquired on 24 February 2007 at 19:28 CET from a distance of about 240 000 km; image resolution is about 5 km/pixel.

Jupiter Full-disc image of Jupiter taken on 21 April 2014 with Hubble's Wide Field Camera 3 (WFC3).

Full Moon Full Moon photograph taken 10-22-2010 from Madison, Alabama, USA. Photographed with a Celestron 9.25 Schmidt-Cassegrain telescope. Acquired with a Canon EOS Rebel T1i (EOS 500D), 20 images stacked to reduce noise. 200 ISO 1/640 sec.

The Thomas Harriot Plaque in the grounds of Syon House (W. London)

Harriot's 1609 Drawing of the Moon

Thomas Harriot

Alfonsine tables