High Velocities Measured
The Neon in supernova remnant E0102-72 has been detected moving at velocities exceeding 1000 km/sec. Arrows indicate the relative velocities of the different regions; arrows pointing toward the right indicate that the material is moving along the line of sight toward us.

(Credit: NASA/MIT/C. Canizares, J. Houck.)

Chandra X-ray Image with Scale Bar
Scale bar = 4.4 arcsec
(Credit: NASA/MIT)