This is not a comet.

[theweaselking]

This is a star, and that tail is thirteen light-years long.

And it's travelling so fast it has a bow shock.

Comments

Re: Hay! Relativity, people!

[theweaselking.livejournal.com]

Where's the medium? You're not going to get a bow shock and a trail without resistance.

Dust and gas in the Milky Way. (http://www.nasa.gov/mission_pages/galex/20070815/a.html)

OMG it's full of DUST!

[frith]

A little is going a long way. Weirdness!