Monday, April 21, 2014   |   3,594 users online
Contact us    |    Advertise    |   Help   RSS icon Twitter icon Facebook icon
    Home  ·  News  ·  Forum  ·  Image Gallery  ·  Columns  ·  Encyclopedia  ·  Videos  ·  Chat  ·  Blogs
Find: in

Nebula is 'coldest place in the universe'


Posted on Tuesday, 29 October, 2013 | Comment icon 13 comments


The Boomerang nebula. Image Credit: NRAO/AUI/NSF/NASA/STScI/JPL-Caltech

The Boomerang nebula is 5,000 light years away and has a temperature of -458 degrees Fahrenheit.

The temperature of the nebula is in fact so low and it is colder then the depths of interstellar space and is believed to be the coldest object observed anywhere in the known universe. Images of the nebula show it to exhibit a strange, ghost-like appearance.

Known as a planetary nebula, the object represents the end of the life cycle of a star not dissimilar to our own sun. Astronomers used the Atacama Large Millimeter/submillimeter Array (ALMA) telescope in Chile to learn more about the nebula and to determine its true shape.

"This ultra-cold object is extremely intriguing and we're learning much more about its true nature with ALMA," said JPL scientist Raghvendra Sahai. "What seemed like a double lobe, or boomerang shape, from Earth-based optical telescopes, is actually a much broader structure that is expanding rapidly into space."

   
Source: JPL | Comments (13)

Tags: Boomerang Nebula


 
Recent comments on this story
Comment icon #4 Posted by Rhino666 on 29 October, 2013, 17:08
Me neither.
Comment icon #5 Posted by Waspie_Dwarf on 29 October, 2013, 21:53
I think you'll need a physicist for this, not an ex-chemist.
Comment icon #6 Posted by keithisco on 29 October, 2013, 22:03
LOL Waspie, but I know what you mean. As an aeronautical engineer with a passing amateur interest in pure physics some things fall well beneath my radar of understanding
Comment icon #7 Posted by MysticStrummer on 30 October, 2013, 4:34
Coldest place in the (observable) universe
Comment icon #8 Posted by Frank Merton on 30 October, 2013, 6:04
We measure its temperature from details of its spectrum. I would assume energy has been taken out of it by the expansion. That tends to cool things a bit as energy is consumed pushing outward.
Comment icon #9 Posted by woopypooky on 30 October, 2013, 12:03
how can stars be cold? they emit lights.
Comment icon #10 Posted by Frank Merton on 30 October, 2013, 12:08
Sorry this is not stars but a nebula, which is typically very very rarefied gas or dust.
Comment icon #11 Posted by Leonardo on 30 October, 2013, 13:15
The problem with that is CMB. CMB is everywhere and is hotter than the observed temperature of the nebula. Things only cool when they expand, if the space they are expanding into is less energetic (i.e. cooler). In this case that is not true. In theory, nothing should be naturally cooler than the temperature of empty space which, with CMB pervading it, is ~2.7 Kelvin.
Comment icon #12 Posted by Twin on 3 November, 2013, 2:18
It seems improbable that the most extreme "anything" would be that close to our little corner of the universe. BTW, I hate when then and than are confused (see the first sentence). I hate it almost as much as when people use BTW, BTW.
Comment icon #13 Posted by Belial on 3 November, 2013, 6:00
That be god that
Please Login or Register to post a comment.
Other news in this category
Earth struck by big asteroids 'all the time'
Posted 4-20-2014 | 7 comments
Three former NASA astronauts are set to reveal some unsettling data on how vulnerable our planet is....
 
Kepler discovers most Earth-like exoplanet
Posted 4-18-2014 | 20 comments
Astronomers have located an Earth-sized world within the 'Goldilocks zone' of a distant solar system....
 
Does Pluto have a subterranean ocean ?
Posted 4-16-2014 | 15 comments
A new theory suggests that Pluto, like Europa and Enceladus, may be home to a liquid water ocean....
 
New twin experiment to test effects of space
Posted 4-15-2014 | 10 comments
NASA is set to conduct an unprecedented new study in to the way space can affect the human body....
 
Russia to build permanent Moon base
Posted 4-13-2014 | 45 comments
Russia has big plans for its space program in the coming years and the Moon is its next target....
 
'Cherry tree from space' blooms years early
Posted 4-12-2014 | 24 comments
Scientists have been left baffled by the accelerated growth of a seed that had spent a year in space....
 
Possible exomoon candidate discovered
Posted 4-11-2014 | 41 comments
Scientists have identified what could be a natural satellite orbiting a planet in another solar system....
 
NASA begins building asteroid spacecraft
Posted 4-10-2014 | 8 comments
The OSIRIS-REx spacecraft will visit a nearby asteroid, obtain samples and then return them to Earth....
 
Colonization requires at least 10,000 people
Posted 4-9-2014 | 53 comments
A new study has calculated how many people it would take to viably populate another planet....
 
Rover photographs mystery light on Mars
Posted 4-8-2014 | 144 comments
NASA's Curiosity rover has managed to capture an image of an anomalous light on the Martian surface....
 
Scientists confirm 'great lake' on Enceladus
Posted 4-4-2014 | 17 comments
New data from the Cassini space probe has confirmed the presence of water under the moon's surface....
 

 View: More news in this category
 
Top   |  Home   |   Forum   |   News   |   Image Gallery   |  Columns   |   Encyclopedia   |   Videos   |   Polls
UM-X 10.6 Unexplained-Mysteries.com 2001-2014
Privacy Policy and Disclaimer   |   Cookies   |   Advertise   |   Contact   |   Help/FAQ