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Orbit of Comet Churyumov-Gerasimenko. (Credit: Subrban Spaceman) Mona Evans, "Rosetta the Comet Chaser" http://www.bellaonline.com/articles/art182574.asp

Rosetta and Philae - infographic. (Credit: European Space Agency) Mona Evans, "Rosetta the Comet Chaser" http://www.bellaonline.com/articles/art182574.asp

Comet 67P/Churyumov-Gerasimenko on 20 May 2015 – taken by Rosetta's NavCam. (Copyright: ESA/Rosetta/NavCam) Rosetta was 163.6 km (100 miles) from the comet centre. Mona Evans, "Rosetta the Comet Chaser" http://www.bellaonline.com/articles/art182574.asp

io9from io9

Now You Can Truly Appreciate the Size of Comet Churymov-Gerasimenko

In case you have been scoffing at the size of tiny comet Churymov-Gerasimenko (AKA the rubber ducky comet) that spacecraft Rosetta has been exploring, here's an image that shows it on the same scale as downtown Los Angles. (Michel, AKA @quark1972 on Twitter.) Mona Evans, "Rosetta the Comet Chaser" http://www.bellaonline.com/articles/art182574.asp

Comet 2P/Encke. 2013-10-12. (Credit: D. Peach) Mona Evans, "Comets" http://www.bellaonline.com/articles/art33712.asp

Imhotep region on Comet 67P/Churyumov–Gerasimenko - geological mapping. (Image credit: ESA/ Rosetta/ MPS for OSIRIS Team MPS/ UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA) Mona Evans, "Rosetta the Comet Chaser" Mona Evans, "Rosetta - the Comet Chaser) http://www.bellaonline.com/articles/art182574.asp

The Rosetta spacecraft saw its destination (Comet 67P/Churymov-Gerasimenko) on March 20, 2014 from about three million miles (five million kilometers) away. The comet is in the small circle next to the globular star cluster M107. (credit: ESA/MPS for OSIRIS-Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA) Mona Evans, "Rosetta the Comet Chaser" http://www.bellaonline.com/articles/art182574.asp

Comet 67P/Churyumov-Gerasimenko, taken on 2014-08-09. (Copyright ESA/Rosetta/NAVCAM) This picture was taken at a distance of just under 100 km. Mona Evans, "Rosetta the Comet Chaser" http://www.bellaonline.com/articles/art182574.asp

Etsyfrom Etsy

1837 whale skeleton original antique sea life ocean print - great rorqual whale anatomy

Halley's Comet, observed October 29, 1835. Observers noted the streams of vapor coming out of the comet. Mona Evans, "Halley's Comet" http://www.bellaonline.com/articles/art44795.asp

Comet Hale-Bopp (Credit: A. Dimai and D. Ghirardo) It was also called the Great Comet of 1997 and was a naked eye object for eighteen months. The comet was not only extremely bright, but also had two tails. Mona Evans, "Comets" http://www.bellaonline.com/articles/art33712.asp

Three galaxies and a comet, Argentina. (Image Credit & Copyright: Miloslav Druckmuller) You can see part of our own Milky Way with diffuse starlight and dark nebulae. There are also two satellite galaxies of the Milky Way, the Large and Small Magellanic Clouds. Near the horizon is the Great Comet of 2007 Comet McNaught. Mona Evans, "Comets" http://www.bellaonline.com/articles/art33712.asp