Explanation:
Cataloged as M1, the Crab Nebula is the first on
famous list of things which are
.
In fact,
now known to be a supernova remnant, an expanding
cloud of debris from the death explosion of a massive star.
The violent birth of the Crab was
in the year 1054.
Roughly
,
the nebula is still expanding
of about 1,500 kilometers per second.
the expansion by
from the
Hubble Space Telescope and James Webb Space Telescope.
The Crab's dynamic, fragmented filaments were captured in visible
light by Hubble in 2005 and Webb in infrared light in 2023.
lies about 6,500 light-years away in the
.
