At the center of the Helix Nebula lies a white dwarf star, surrounded by a bright ring that spans nearly 3 light-years. The Helix Nebula may appear like a bubble or eye from Earth, but it's actually a ...

After tracking a puzzling X-ray signal from a dying star for decades, astronomers may have finally explained its source: The old star might have destroyed a nearby planet. Dating back to 1980, X ...

In this image from NASA's Spitzer Space Telescope, "cometary knots" on the Helix Nebula show blue-green heads caused by excitation of their molecular material from shocks or ultraviolet radiation.

The Helix Nebula. Credit: X-ray: NASA/CXC/SAO/Univ Mexico/S. Estrada-Dorado et al.; Ultraviolet: NASA/JPL; Optical: NASA/ESA/STScI (M. Meixner)/NRAO (T.A. Rector ...

39-year-old makes about $18,000 a month in passive income without a college degree: Here's my best advice NFL News: Vikings have reportedly chosen their next quarterback between Aaron Rodgers and ...

Helix structure of DNA molecule with letters associated with genetics, DNA and chromosomes. Abstract concept of genetic engineering, DNA test or chromosome research. Helix structure of DNA molecule ...

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The star V830 Orionis shines on the cloud of material left over from its formation, here seen as the NGC 1999 reflection nebula. The Helix Nebula is an example of a planetary nebula. Though it looks ...

Astronomers may finally have settled the question of what is causing highly energetic X-rays from WD 2226-210, a white dwarf star located at the center of the Helix Nebula. The Helix Nebula is a ...

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