James Webb Space Telescope, supernova

The shockwave Webb studied emerged from Cassiopeia A, now a neutron star, about 11,000 light-years from Earth. After the ...
The shells of carbon-rich dust are expanding outward into space at the breakneck velocity of 1,600 miles per second.
NASA's James Webb Space Telescope captured detailed images of the Cassiopeia A supernova remnant, revealing wood grain-like ...