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 signal, which scientists have been working to untangle for more than 40 years, is thought to be the "death knell" of an exoplanet destroyed by a star in the Helix Nebula. Astronomers first ...

Helix Nebula’s X-ray emissions linked to planetary destruction White dwarf WD 2226-210 may be accreting planetary debris Researchers suggest a Jupiter-like planet was torn apart ...

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 ...

here seen as the NGC 1999 reflection nebula. The Helix Nebula is an example of a planetary nebula. Though it looks like a bubble or eye from Earth's point of view, the Helix is actually a ...

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 ...

star-forming nebula in the constellation Orion is an example of emission nebula. It is home to a star cluster defined by four massive stars known as the Trapezium. The Helix Nebula is an example of a ...

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Perfectly usable for a wide range of topics. nebula clouds stock videos & royalty-free footage Open space video footage. Space gas clouds. Open space video footage. Space gas clouds. Cosmos neutral ...