The stunning new image of Cassiopeia A (Cas A), which lies roughly 11,000 light years from Earth and is one of the most well-studied supernova remnants, was captured by the agency’s famed James ...

More constellation Cassiopeia. It spans approximately 10 light-years. This new image uses data from Webb’s Mid-Infrared Instrument (MIRI) to reveal Cas A in a new light. On the remnant’s ...

NASA/JPL/CalTech; Image Processing: NASA/CXC/SAO/J. Schmidt and K. Arcand This combined research of Cassiopeia A has also helped astronomers better understand the explosion that created the ...

From distant supernova remnants, to colorful mosaics of giant galaxies and nebulae, check out these 7 alluring deep universe ...

A new image of a supernova remnant reveals wonders, beauty, secrets of star structure and building blocks of life. Cassiopeia A (Cas A) is a supernova remnant located about 11,000 light-years from ...

“The Webb images are really amazing,” says Fesen, who led the first team that studied Cassiopeia A with the Hubble Space Telescope. Hubble observes in primarily optical light—the wavelength ...