plows through space at over 500,000 kilometers per hour.
Moving toward to bottom of this
detailed color composite, the
thin, braided filaments are actually
long ripples in a sheet of glowing gas seen almost edge on.
as NGC 2736, its narrow appearance
suggests its popular name,
About 5 light-years long and a mere 800 light-years away, the
is only a small part of the
is around 100 light-years in diameter and is the expanding
cloud of a star that was seen to
explode about 11,000 years ago.
Initially, the shock
wave was moving at millions of
per hour but has
considerably, sweeping up
surrounding interstellar gas.