News tagged with planetary nebula

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New molecules around old stars

(Phys.org) —Using ESA's Herschel space observatory, astronomers have discovered that a molecule vital for creating water exists in the burning embers of dying Sun-like stars.

Jun 17, 2014
4.7 / 5 (15) 4

How stellar death can lead to twin celestial jets

(Phys.org) —Astronomers know that while large stars can end their lives as violently cataclysmic supernovae, smaller stars end up as planetary nebulae – colorful, glowing clouds of dust and gas. In recent ...

Feb 12, 2014
4.5 / 5 (8) 0 | with audio podcast

Has graphene been detected in space?

(PhysOrg.com) -- A team of astronomers, using the Spitzer Space Telescope, have reported the first extragalactic detection of the C70 fullerene molecule, and the possible detection of planar C24 ("a piece of graphene ...

Aug 11, 2011
4.9 / 5 (8) 17 | with audio podcast

A New Method of Estimating Stellar Distances

(PhysOrg.com) -- The star Chi Cygni is located about 550 light-years away, in the direction of the constellation of Cygnus the Swan. It is a notable star because, unlike the sun which still burns hydrogen ...

Dec 21, 2009
4.4 / 5 (15) 2

Chance meeting creates celestial diamond ring

Astronomers using ESO's Very Large Telescope in Chile have captured this eye-catching image of planetary nebula PN A66 33—usually known as Abell 33. Created when an aging star blew off its outer layers, ...

Apr 09, 2014
5 / 5 (7) 0

Sakurai's Object: Stellar evolution in real time

(Phys.org) —Stellar lifetimes are measured in billions of years, so changes in their appearance rarely take place on a human timescale. Thus an opportunity to observe a star passing from one stage of life ...

Apr 02, 2014
4.7 / 5 (18) 0

A ghostly trio from Spitzer Space Telescope

(Phys.org) —In the spirit of Halloween, scientists are releasing a trio of stellar ghosts caught in infrared light by NASA's Spitzer Space Telescope. All three spooky structures, called planetary nebulas, ...

Oct 29, 2013
5 / 5 (7) 0 | with audio podcast

Moon is younger than first thought

Improved age data for the Moon suggests that it is much younger than previously believed according to scientists presenting at a Royal Society discussion meeting entitled Origins of the Moon this week (23 ...

Sep 25, 2013
4.4 / 5 (17) 14 | with audio podcast