Michael S. P. Kelley

Associate Research Scientist
Department of Astronomy
University of Maryland
College Park MD 20742-2421

Office: 1207B CSS (wing 2)
Phone: 301-405-3796
(Not to be confused with Michael "NASA HQ" Kelley)

Discovery of Activity at Asteroid 2016 BA14

Feb 2016: The orbit of asteroid 2016 BA14 has been shown to be remarkably similar to that of comet 252P/LINEAR 12. With both objects headed for close approaches to the Earth in March 2016, we decided to look closely at asteroid BA14, and guess what we found: a comet's tail!

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The Spitzer Space Telescope and a Survey of Cometary Activity

January 2015: With the Spitzer Space Telescope, we can survey how much carbon dioxide comets produce through their orbits, and assess its role in comet activity.

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C/2013 A1 (Siding Spring)

Comet C/2013 A1 (Siding Spring) as seen by the Spitzer Space Telescope

As seen in infrared light by the Spitzer Space Telescope, this color enhanced combination of two images of comet Siding Spring shows a dust tail (blue-white), surrounded by a coma of carbon dioxide gas (red-orange) Image credit: NASA/JPL-Caltech/M. Kelley (Univ. Maryland).

Cometary Science Newsletter

The Cometary Science Newsletter is a monthly newsletter dedicated to sharing and furthering cometary science. Read on-line at www.cometarysciencenews.org.