|
|
 |
SPACE-US-CASSIOPEIA A
The mystery of how Cassiopeia A exploded is unraveling thanks to new data from NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR. In this NASA image obtained February 19, 2014, NuSTAR data, which shows high-energy X-rays from radioactive material, are colored blue. Lower-energy X-rays from non-radioactive material, imaged previously with NASA's Chandra X-ray Observatory, are shown in red, yellow and green. The new view shows a more complete picture of Cassiopeia A, the remains of a star that blew up in a supernova event whose light reached Earth about 350 years ago, when it could have appeared to observers as a star that suddenly brightened. The remnant is located 11,000 light-years away from Earth. NuSTAR is the first telescope capable of taking detailed pictures of the radioactive material in the Cassiopeia A supernova remnant. While other telescopes have detected radioactivity in these objects before, NuSTAR is the first capable of pinpointing the location of the radioactivity, creating maps. AFP PHOTO/NASA/JPL-CALTECH/CXC/SAO/HANDOUT = RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / HANDOUT/NASA/JPL-CALTECH/CXC/SAO " - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS =
|
|
|
|
Detalii fotografie |
| Loc: |
|
-, SPACE |
|
| Sursa: |
|
AFP / Mediafax Foto |
|
| Fotograf: |
|
HANDOUT |
|
| Data: |
|
19 Februarie 2014 |
|
| Dimensiuni: |
|
2775 x 2175 (474.85 KB) |
|
|
|
|
|
|