An unusual x-ray signal from the Helix Nebula, first detected in 19180, could stem from a star destroying a nearby planet.

The Helix Nebula is one of the closest and most remarkable examples of a planetary nebula*. It lies in the constellation of Aquarius (The Water Bearer), about 700 light-years away from Earth.

Helix's central star once resembled the Sun, but its outer layers of gas and dust sloughed off. The resulting planetary nebula, located some 700 light-years from Earth, is what telescopes now see.

The Helix Nebula, NGC 7293, lies about 700 light-years away in the constellation of Aquarius (the Water Bearer). It is one of the closest and most spectacular examples of a planetary nebula.

A nearby planetary nebula shines like a huge golden eye in a new photo snapped by a telescope in Chile. The image shows the Helix Nebula, which lies about 700 light-years from Earth in the ...

A new photo snapped by the European Southern Observatory's Vista telescope shows the Helix Nebula, a planetary nebula located about 700 light-years from Earth in the constellation Aquarius.

The Helix Nebula, NGC 7293, is not only one of the most interesting and beautiful planetary nebulae; it is also one of the closest nebulae to Earth, at a distance of only 710 light years ...

A newly released image of the planetary nebula taken in infrared light brings into view what normally can't be seen in visible light. Anne Dujmovic was a senior editor at CNET. Her areas of focus ...

The Helix Nebula (NGC 7293) lies about 700 light-yearsaway in the constellation of Aquarius, or the Water Bearer. It is one of theclosest and most spectacular examples of a planetary nebula.