On September 30, 2010, water production on Comet Hartley 2 – as represented by the hydrogen cloud surrounding the comet seen by SOHO – jumped by a factor of two and half in a single day. (Comet and cloud size are not to scale.)
On September 30, 2010, water production on Comet Hartley 2 – as represented by the hydrogen cloud surrounding the comet seen by SOHO – jumped by a factor of two and half in a single day. (Comet and cloud size are not to scale.) Credit: NASA/Steele Hill
Inset upper right: Comet Hartley 2 as viewed by EPOXI from 435 miles away on November 4, 2010. Credit: NASA/JPL-Caltech/UMD› Link to associated news item