Piece honoring the Mercury MESSENGER mission created for my 7,000th tweet.  The text is taken from the title page of a translated version of Galileo's "Sidereal Messenger."  Background image was taken of Mercury by MESSENGER on October 18, 2014.  Image credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington.

Piece honoring the Mercury MESSENGER mission created for my 7,000th tweet. The text is taken from the title page of a translated version of Galileo’s “Sidereal Messenger.” Background image was taken by MESSENGER on October 18, 2014. Image credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington.

A collage of old and new perspectives of Jupiter, Saturn, comets, Pluto, Europa, Mars, the Sun, and deepest space.

A collage of old and new perspectives of Jupiter, Saturn, comets, Pluto, Europa, Mars, the Sun, and deepest space.  When New Horizons reaches Pluto in 2015, we will have the after picture.  Likewise Europa when we launch a mission there.  And Hubble’s Ultra Deepfield image will likely be superseded by even more amazing photos from JWST.

Spacecraft and rovers from Earth to upper right: Hubble Space Telescope (image credit: NASA), lunar rover Yutu (image credit: China space), Mars rover Curiosity (image credit: NASA/JPL), Cassini (image credit: NASA/JPL), Rosetta (image credit: ESA, image by AOES Medialab), New Horizons (image credit: NASA), Voyager (image credit: NASA), and Pioneer (image credit: NASA).

Spacecraft and rovers from Earth to upper right: Hubble Space Telescope (image credit: NASA), lunar rover Yutu (image credit: China space), Mars rover Curiosity (image credit: NASA/JPL), Cassini (image credit: NASA/JPL), Rosetta (image credit: ESA, image by AOES Medialab), New Horizons (image credit: NASA), Voyager (image credit: NASA), and Pioneer (image credit: NASA).

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