Tuesday, September 19, 2017
Contact us    |    Advertise    |   Help   RSS icon Twitter icon Facebook icon
    Home  ·  News  ·  Forum  ·  Stories  ·  Image Gallery  ·  Columns  ·  Encyclopedia  ·  Videos
Find: in
This news story is archived which means that, while it is still available to view, the information contained within may be outdated and the original source site/link may no longer be viewable.

For the most recent stories, please visit either the site's home page or main news section.

Do planets form within only a few years ?

Posted on Friday, 6 July, 2012 | Comment icon 12 comments | News tip by: Abramelin


Image credit: Lynette Cook / Gemini Observatory

 
Observations of a distant dust-filled solar system have shed light on the process of planet formation.

Our current understanding of planet formation suggests that planets form slowly over a period of several hundred thousand years from particles of dust left over following the birth of a star. What researchers found from observations of the TYC 8241 2652 system however was that the entire dust cloud circling the star had all but disappeared within just three years.

"The most commonly accepted time scale for the removal of this much dust is in the hundreds of thousands of years, sometimes millions," said study co-author Inseok Song. "What we saw was far more rapid and has never been observed or even predicted. It tells us that we have a lot more to learn about planet formation."

"The scientists first identified their star of interest by examining data from the Infrared Astronomical Satellite, or IRAS, which surveyed more than 96 percent of the sky in 1983."

  View: Full article

 Source: Phys.org


  Discuss: View comments (12)

   


 
Recent comments on this story
Comment icon #3 Posted by Taun on 5 July, 2012, 21:38
First off I DID NOT CLAIM THEY DID IN FACT MISUNDERSTAND THE EVIDENCE!!! I said That I would most likely believe that they did... Then I stated why I would believe that... Of course I MUST be wrong... Scientists have never been wrong before... ("Formation points" - Gravitational 'center points' where planets/ planetoids form - if they coallesced into planets there had to be a central formation point...)
Comment icon #4 Posted by Taun on 6 July, 2012, 2:18
Sorry about that last posting... We are in the middle of a major family crisis right now involving a nephew who is missing under suspicious circumstances... and I had just finished speaking with his mother (my older sister -who always gets my 'dander up')... No reason for me to snap out at you like that... I appologise...
Comment icon #5 Posted by OverSword on 6 July, 2012, 18:11
... So Waspie This disk, is it theorized that it will form into several planetary objects or just one? I assume that once one part of the disk gains a little more mass than the surrounding that more matter will be attracted there. Presumably this would make a tear, (guessing) and then another (heavy?) point would maybe be formed around on the other side of the star (or maybe really singularity at this point in time) and this pattern would repeat until you had several new planetoids? Hopefully one day we will be able to send probes to record the details of an event like this. Wish I was born in... [More]
Comment icon #6 Posted by Uncle Sam on 7 July, 2012, 10:26
Another theory, the dust has been harvested. Like how we are starting to get into harvesting asteroids, but on such a large scale that would require an massive industrial complex of drones to do it. Of course that is a wild speculation, but if it is true, it would be the first implication of intelligent life in the universe. Some species that are able to do this would be extremely powerful and would not require to have a planet to harvest materials. Matter of fact, they would more likely be able to just hang out our neighbor hood catching asteroids and harvesting them without interfering with ... [More]
Comment icon #7 Posted by csspwns on 8 July, 2012, 1:44
tat forms fast
Comment icon #8 Posted by Waspie_Dwarf on 9 July, 2012, 18:25
No reason for me to snap out at you like that... I appologise... No apology needed Taun, my post to you could have been more diplomatic. My best wishes to you and your family.
Comment icon #9 Posted by GalaxyCell on 13 July, 2012, 15:39
The disc recently aligned itself "edge-on" with our line of sight from earth. It did not vanish, and reflects no radiation because the disc is thin and flat shaped, and fractal dust and gas. It was 1/3 as bright in 2009, and I predict that it will become visible again in a few years. Scientists cannot explain it, but my explanation is simple logic and fully predictable. The full explanation with photos (and far better story) is on my story at http://holographicgalaxy.blogspot.com/2012/07/protoplanetary-dust-cloud-gradually.html
Comment icon #10 Posted by Waspie_Dwarf on 13 July, 2012, 18:27
my explanation is simple logic and fully predictable. ...and almost certainly wrong. Firstly, the disk can not be infinitely thin, therefore, even though reduced, there would still be an infrared excess, the disk would still be visible. Secondly, the disk would not suddenly turn edge on, it would be a gradual process, as with the rings of Saturn. The infrared excess would reduce gradually, not just disappear suddenly as seems to have happened here. Thirdly, an edge on disk would have to occult the central star, leading to an apparent dimming of that star. None of these things have been observe... [More]
Comment icon #11 Posted by GalaxyCell on 13 July, 2012, 20:33
The disc gradually became undetectable during a 2 year period measured. The sudden vanish disappearance interpretation of the disc is illogical. Dust blocks absorbs all visible and infrared emissions from the disc's aligned edge. Protoplanetary discs are not infinite as suggested, but are shaped aligned like Saturn's rings, being extremely thin seen edge-on, and not occulting starlight. Our's had extended out to about Neptune's orbit in our solar system. As a degreed scientist, I believe my theory to be true, and want NASA or some authority to research it.
Comment icon #12 Posted by FreddyScienceTeacher on 19 August, 2012, 5:13
Everyone knows that planets are formed when the lowest choir of angels plays their kazoos--that's why Pluto was demoted to a planetessimal, he couldn't carry a tune. snark.


Please Login or Register to post a comment.


  On the forums
Forum posts:
Forum topics:
Members:

5986397
257702
169449

 
Mystery surrounds flushed money in Geneva
9-19-2017
An unknown individual has been flushing thousands of euros down the toilet and nobody knows why.
'Octopus city' found off coast of Australia
9-19-2017
Members of the gloomy octopus species have created their own underwater settlement dubbed 'Octlantis'.
60 ancient shipwrecks found in the Black Sea
9-19-2017
Marine archaeologists unexpectedly stumbled across a goldmine of shipwrecks during a recent expedition.
Italian supervolcano's magma source found
9-18-2017
Scientists have discovered evidence of a 'hot zone' feeding a supervolcano in southern Italy.
Other news in this category
Three planets to hide behind the Moon today
Posted 9-18-2017 | 1 comment
Venus, Mars and Mercury will all be temporarily disappearing behind the Moon over the next few hours....
 
Mars simulation crew to emerge after 8 months
Posted 9-17-2017 | 3 comments
The crew of six NASA astronauts has been living in a dome near one of Hawaii's largest volcanoes....
 
Mysterious exoplanet is 'blacker than asphalt'
Posted 9-16-2017 | 4 comments
A 'hot Jupiter' world situated 1,400 light years away reflects so little light that it appears pitch black....
 
Cassini is destroyed as it flies in to Saturn
Posted 9-15-2017 | 29 comments
One of the greatest robotic space missions of all time has finally reached its inevitable conclusion....
 
Titanium oxide detected on extrasolar planet
Posted 9-14-2017 | 2 comments
For the first time, astronomers have picked up signs of titanium oxide on a distant extrasolar world....
 
Has China managed to crack NASA's EmDrive ?
Posted 9-13-2017 | 34 comments
Chinese scientists have allegedly built a working prototype of the 'impossible' space engine....
 
Cassini set for total destruction on Friday
Posted 9-11-2017 | 29 comments
NASA's long-lived Cassini spacecraft will begin its final descent in to Saturn's atmosphere this week....
 
Full SpaceX spacesuit has now been revealed
Posted 9-11-2017 | 11 comments
Elon Musk has followed up last month's teaser image with a full photo of the firm's new spacesuit design....
 
Secretive X-37B space plane launches again
Posted 9-8-2017 | 4 comments
The mysterious unmanned shuttle has embarked on yet another mission that nobody knows anything about....
 
Earth hit by strongest solar flare in 10 years
Posted 9-7-2017 | 62 comments
Two extremely powerful solar flares erupted from a large sunspot on the Sun's surface yesterday....
 
'World's most powerful rocket' testing complete
Posted 9-5-2017 | 2 comments
SpaceX is preparing to launch its powerful new Falcon Heavy rocket for the first time in November....
 

 View: More news in this category
 
Top   |  Home   |   Forum   |   News   |   Image Gallery   |  Columns   |   Encyclopedia   |   Videos   |   Polls
UM-X 10.7 Unexplained-Mysteries.com 2001-2017
Privacy Policy and Disclaimer   |   Cookies   |   Advertise   |   Contact   |   Help/FAQ