Year of the Comet
Comet C/2011 L4 (PANSTARRS)

PANSTARRS information

Comet C/2012 S1 (ISON)

ISON information

Ask Astro

Published: May 1, 2007
Yes. The MESSENGER mission to Mercury, launched in 2004, will enter orbit around Mercury in 2011. During its yearlong primary mission orbiting Mercury, the spacecraft's seven instruments will study the solar system's smallest planet (not counting Pluto, which was recently demoted to dwarf-planet status). But before it enters orbit, especially starting in early 2008 when MESSENGER first flies past Mercury, the probe may have opportunities to use its wide-angle camera to search for small bodies — moons, comets, and asteroids — in Mercury's vicinity.
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