Hubble solves the 40-year-old mystery of the Magellanic Stream
2013-08-12 0:00

By Katie Collins | Ars Technica



The origins of a mysterious ribbon of gas that stretches nearly halfway around the Milky Way has been discovered by astronomers using the Hubble Space Telescope.

Ever since its discovery 40 years ago, astronomers have wondered where the Magellanic Stream originated. And now they have their answer. The stream was, for the most part, stripped from the Small Magellanic Cloud around two billion years ago.

The Small Magellanic Cloud is one of the dwarf galaxies that orbit our own. Computer models had predicted that the stream had been torn entirely from the smaller cloud, which is why astronomers were surprised to discover that a small part of the Magellanic Stream was also torn more recently from the larger of the Magellanic Clouds.

The sources were finally determined by using Hubble’s Cosmic Origins Spectrograph and the European Southern Observatory’s Very Large Telescope. Along most of the stream, the team found low abundances of oxygen and sulphur that correlated with levels found in the Small Magellanic Cloud two billion years ago. The composition of an inner region of the stream, however, was found to be full of heavy elements that made it more consistent with the Large Magellanic Cloud.

[...]

Read the full article at: arstechnica.com








Related Articles
Origin of Magellanic Stream that Wraps Halfway Around Milky Way Discovered
There’s a mysterious glow in this galaxy
Infinity Symbol of Dense Gas Observed at the Centre of the Milky Way Galaxy
Bubbles of Energy Are Found in Galaxy


Latest News from our Front Page

New Hampshire Voters "Outright Crazy" Says Bilderberger Carl Bildt, Ex-Prime Minister Of Europe’s Rape Capital
2016-02-11 1:17
The people of New Hampshire are “outright crazy” for voting for U.S. Republican candidate Donald Trump and Democrat contender Sen. Bernie Sanders (I-VT) , a former Swedish Prime Minister and foreign minister has said. After the primary results were announced, Carl Bildt tweeted this morning that he had always felt New Hampshire to be a “decent small place”. Not anymore, however: Mr Bildt served ...
Mother of ten-year-old boy raped in Austrian swimming pool by Iraqi who said it was 'a sexual emergency' says she regrets telling her children 'migrants need our help'
2016-02-10 23:22
The mother of the boy who was raped by an Iraqi migrant in a swimming pool in Austria, has said she regrets teaching her children to be welcoming to migrants and described the man's defence as 'just monstrous'. The boy's mother Dunja, who arrived in Austria as an immigrant in the 90s from Serbia during the Civil War, said she had ...
NY School Organizes ‘Hijab Day’ For Non-Muslim Students
2016-02-10 22:10
Officials at Rochester’s World School of Inquiry spent last week fielding dozens of calls from parents angry about a “World Hijab Day” event that encouraged girls to wear the Muslim religious head covering. Sophomore Eman Muthana wears a hijab to school and wrote a letter to principal Sheela Webster asking if the school can put on its own World Hijab Day ...
Resident of Calais speaks. This is the death of civilization.
2016-02-10 21:46
Youtube description: Heart breaking description of how a government can destroy a city and a people. If ever there was an example of why a free people need a 1st and 2nd amendment style protection, this is it. Please watch it all. The original comes from here http://ripostelaique.com/le-temoignag... one of the most important websites in Europe. Source: youtube.com
Learning how white people ruin the world
2016-02-10 20:41
A conservative black activist warns that "white guilt" has found its way from our college campuses into the halls of the local high school.  Derryck Green of Project 21 says he's troubled by the "White Privilege Conference" coming in April in Philadelphia, Pennsylvania. The website for "The WPC" states that it purpose is to examine "privilege and oppression" in order to create ...
More News »