21 Dec 99
A supernova remnant in the constellation Cassiopeia.
14 Dec 99
A supernova detected in a spiral galaxy 25 million light years from Earth.
09 Dec 99
A cluster of galaxies in the constellation Hydra.
16 Nov 99
A large galaxy in the center of a cluster of galaxies located in the constellation Boötes.
25 Oct 99
Centaurus A (NGC 5128) is a radio galaxy in the constellation Centaurus.
08 Oct 99
A supermassive star and nebula that is one of the brightest infrared sources in the sky.
28 Sep 99
A supernova remnant and pulsar in the constellation Taurus.
20 Sep 99
A supernova remnant in the constellation Tucana.
20 Sep 99
A pulsar and supernova remnant in the Large Magellanic Cloud.
20 Sep 99
A supernova remnant in the constellation Scutum.
02 Sep 99
A star forty light years away
01 Sep 99
The remnant of an exploded star in the Large Magellanic Cloud.
26 Aug 99
The remnant of a star that exploded about 300 years ago in the constellation Cassiopeia.
26 Aug 99
A luminous quasar in the constellation Mensa so distant that we see it as it was 6 billion years ago.