X-ray signal from Helix Nebula points to planet destroyed by white dwarf
After tracking a puzzling X-ray signal from a dying star for decades, astronomers may have finally explained its source: The ...
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The Helix Nebula (IMAGE)
This color-composite image of the Helix Nebula was created from images obtained using the the Wide Field Imager, an astronomical camera attached to the 2.2 meter Max-Planck Society/ESO telescope ...
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NASA's Chandra Traces Mysterious X-Ray Signal Back to Destroyed Planet
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 ...
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NGC 7293, better known as the Helix nebula, displays its ultraviolet glow courtesy of NASA's Galaxy Evolution Explorer (GALEX).
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.
X-ray Signal from Helix Nebula Suggests Planet Was Destroyed by White Dwarf
Co-author Martin Guerrero from the Institute of Astrophysics of Andalusia told Phys.org that debris from the shattered planet ...