Etiket: remnant
Giant remnant of a star
This remnant of an exploded star is gigantic. The remnant, which astronomers call Cassiopeia A, is eleven thousand light-years away from Earth and about ten light-years across. It was captured…
This remnant of an exploded star is gigantic. The remnant, which astronomers call Cassiopeia A, is eleven thousand light-years away from Earth and about ten light-years across. It was captured…