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. An ...
A bunch of rowdy comets are colliding and kicking up dust around a dead star, according to new observations from NASA’s Spitzer Space Telescope. The dead star lies at the center of the ...
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 at ...
Washington, DC — The Helix Nebula (NGC 7293) is a challenging stargazing target for amateur astronomers. It is one of the closest planetary nebulas — a type of nebula formed from gas ejected by a ...
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. In ...
Our spectacular view of a nearby planetary nebula was captured by luck when the Hubble Space Telescope was turned around to avoid damage from a meteor storm – directly towards the Helix Nebula. While ...
This image was created from images through blue, green and red filters and the total exposure times were 12 minutes, 9 minutes, and 7 minutes, respectively. Astronomers have obtained a deep new image ...
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