Astronomy Picture of the Day -- HH 47: A Young Star Jet Expands

NASA ^ | September 05, 2011 | (see photo credit)

[SunkenCiv]

Explanation: Stars remain where they are. Nebulas appear the same. Day after day. Year after year. Given the vast distances in astronomy, even fast moving objects will not appear to change their appearance in a human lifetime. Typically. A recent spectacular exception to this, however, is the supersonic jet in the star forming Herbig Haro 47. HH 47 is so close -- and the jets are moving so fast -- that images from the Hubble Space Telescope from 1994 to 2008 have been combined into a time-lapse movie that actually shows a powerful jet expanding. Visible above, jets of plasma extending over 10,000 times the Earth-Sun distance shoot out from a forming star at speeds in excess of 150 kilometers per second. Studying how these jets evolve gives clues not only to how the star in HH 47 is forming, but how stars like our Sun formed billions of years ago. HH 47 is located about 1,500 light years away toward the constellation of Sails of a Ship (Vela).

[SunkenCiv]

[Credit: NASA, ESA, & P. Haritgan (Rice U.)]

[SunkenCiv]

I've really begun to hate these video links on APoD; fishing out a usable image is, at best, difficult, as we can't use iFrame or Embed here. Sometimes I can find a good image, usually not, and even when I do find one, it seems to stop working in a few days.

• The original source page, where the vids can actually be downloaded.

Here's an otherwise unrelated "extra extra", a small group of FR topics which are related to each other only:

Martin Gaskell keyword:

• Astronomer claims he lost University of Kentucky job because of faith

  [Right Wing Professor's comments]

• Scientist alleges religious discrimination in Ky.
• Scientist alleges religious discrimination in KY.
• Astronomer Sues the University of Kentucky, Claiming His Faith Cost Him a Job [Christian]
• University of Kentucky Pays $100,000+ to Settle Gaskell Discrimination Lawsuit
• The Martin Gaskell Case: Not an Isolated Incident (ID sympathizer paid $125,000 in settlement)
• When is it acceptable to discriminate against evolution sceptics?
• California Science Center Pays $110,000 to Settle Intelligent Design Discrimination Lawsuit

join or quit list APoD 'blog post new APoD topic Astronomy Picture of the Day topic & keyword Astronomy Chat, Bloggers & keyword Science Chat, Bloggers & keyword NASA's APoD archive Calendar 1995-present APoD on your desktop

[TheOldLady]

But you still made an excellent selection for the OP image, so don’t beat yourself up, Civ.

That’s my job.