Skip to main content

:: HH-222 - Waterfall Nebula: Closeup (Pt.I) ::

:: HH-222 - Waterfall Nebula: Closeup (Pt.I) ::
The structure seen in the region of NGC 1999 in the Great Orion Molecular Cloud complex is one of the more mysterious structures yet found on the sky. Designated HH-222, the elongated gaseous stream stretches about ten light years and emits an unusual array of colors. One hypothesis is that the gas filament results from the wind from a young star impacting a nearby molecular cloud. That would not explain, however, why the Waterfall and fainter streams all appear to converge on a bright but unusual non thermal radio source located toward the upper left of the curving structure. Another hypothesis is that the unusual radio source originates from a binary system containing a hot white dwarf, neutron star, or black hole, and that the Waterfall is just a jet from this energetic system. Such systems, though, are typically strong X-rays emitters, and no X-rays have been detected. For now, this case remains unsolved. Perhaps well-chosen future observations and clever deductive reasoning will unlock the true origin of this enigmatic wisp in the future.
Image Credit to: Z. Levay (STScI/AURA/NASA), T.A. Rector (U. Alaska Anchorage) & H. Schweiker
(NOAO/AURA/NSF), KPNO, NOAO

Comments

Popular posts from this blog

fix idm integration on chrome

Chrome Browser Integration I do not see IDM extension in Chrome extensions list. How can I install it?  How to configure IDM extension for Chrome? Please note that all IDM extensions that can be found in Google Store are fake and should not be used. You need to install IDM extension manually from IDM installation folder. Read in step 2 how to do it . 1. Please update IDM to the latest version by using  "IDM Help->Check for updates..."  menu item 2.  I don't see  "IDM Integration module"  extension in the list of extensions in  Chrome . How can I install it? Press on  Chrome  menu ( arrow 1  on the image), select  "Settings"  menu item ( arrow 2  on the image) and then select  "Extensions"  tab ( arrow 3  on the image). After this open IDM installation folder ( "C:\Program Files (x86)\Internet Download Manager"  by default,  arrow 4  on the image) and drag and drop  "IDMGCExt.crx"  ( arrow 5  on the image) file int

Hidden Wiki

Welcome to The Hidden Wiki New hidden wiki url 2015 http://zqktlwi4fecvo6ri.onion Add it to bookmarks and spread it!!! Editor's picks Bored? Pick a random page from the article index and replace one of these slots with it. The Matrix - Very nice to read. How to Exit the Matrix - Learn how to Protect yourself and your rights, online and off. Verifying PGP signatures - A short and simple how-to guide. In Praise Of Hawala - Anonymous informal value transfer system. Volunteer Here are five different things that you can help us out with. Plunder other hidden service lists for links and place them here! File the SnapBBSIndex links wherever they go. Set external links to HTTPS where available, good certificate, and same content. Care to start recording onionland's history? Check out Onionland's Museum Perform Dead Services Duties. Introduction Points Ahmia.fi - Clearnet search engine for Tor Hidden Services (allows you

Explainer: The nico-teen brain

Explainer: The nico-teen brain The adolescent brain is especially vulnerable to the addictive effects of nicotine BY  TERESA SHIPLEY FELDHAUSEN   7:00AM, AUGUST 19, 2015 Nicotine (black triangle towards center left) tricks the nerve cell (neuron) into sending a message to release more dopamine (yellow dots). Those molecules enter the space (synapse) between one nerve cell and the next. When they get picked up by neighboring cells, this gives users a feel-good high. It also creates the risk of addiction and other health problems.  EMail  Print  Twitter  Facebook  Reddit  Google+ NATIONAL INSTITUTE ON DRUG ABUSE, ADAPTED BY J. HIRSHFELD Nicotine is the addictive chemical in tobacco smoke and e-cigarette vapors. And doctors say the teenage brain is no place for it to end up. Nicotine can reach the brain within seven seconds of puffing on a cigar, hookah, cigarette or electronic cigarette. The area of the brain responsible f