Subscribe free to our newsletters via your
. 24/7 Space News .




Subscribe free to our newsletters via your




















EXO WORLDS
Astronomers find oldest known planetary disk
by Brooks Hays
Washington (UPI) Oct 21, 2016


disclaimer: image is for illustration purposes only

At 45 million years old, a newly discovered primordial ring of gas and dust is the oldest known planet-forming disk in the universe. The record-breaking circumstellar disk surrounds a red dwarf in the Carina stellar association.

"Most disks of this kind fade away in less than 30 million years," Steven Silverberg, an astronomer at the University of Oklahoma, said in a news release.

The red dwarf's planetary disk has lasted an unusually long time. Its discovery was made possible by citizen scientists.

In an effort to locate possible planet-forming regions, NASA has recruited the help of some 30,000 citizen scientists to assist a program called Disk Detective. Participants have viewed and classified some 2 million celestial objects.

"Without the help of the citizen scientists examining these objects and finding the good ones, we might never have spotted this object," said Marc Kuchner, an astronomer at the Goddard Space Flight Center. "The WISE mission alone found 747 million [warm infrared] objects, of which we expect a few thousand to be circumstellar disks."

Determining the age of a star isn't always easy -- in fact, it's sometimes impossible -- but the cluster of stars found in the Carina association appear to have been born at the same time and from the same source material.

Still, more research is needed to confirm the disk's age.

"It is surprising to see a circumstellar disk around a star that may be 45 million years old, because we normally expect these disks to dissipate within a few million years," explained Jonathan Gagné, an astronomer at the Carnegie Institution for Science. "More observations will be needed to determine whether the star is really as old as we suspect, and if it turns out to be, it will certainly become a benchmark system to understand the lifetime of disks."

The discovery of the universe's oldest planetary disk was detailed in a new paper, published this week in the Astrophysical Journal Letters.

Thanks for being here;
We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain.

With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords.

Our news coverage takes time and effort to publish 365 days a year.

If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.

SpaceDaily Contributor
$5 Billed Once


credit card or paypal
SpaceDaily Monthly Supporter
$5 Billed Monthly


paypal only

.


Related Links
Lands Beyond Beyond - extra solar planets - news and science
Life Beyond Earth






Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle

Previous Report
EXO WORLDS
ALMA spots possible formation site of icy giant planet
Tokyo, Japan (SPX) Oct 21, 2016
A number of extrasolar planets have been found in the past two decades and now researchers agree that planets can have a wide variety of characteristics. However, it is still unclear how this diversity emerges. Especially, there is still debate about how the icy giant planets, such as Uranus and Neptune, form. To take a close look at the planet formation site, a research team led by Takash ... read more


EXO WORLDS
Spectacular Lunar Grazing Occultation of Bright Star on Oct. 18

Hunter's Supermoon to light up Saturday night sky

Small Impacts Are Reworking Lunar Soil Faster Than Scientists Thought

A facelift for the Moon every 81,000 years

EXO WORLDS
Euro-Russian craft enters Mars orbit, but lander's fate unknown

Did it crash or land? Search on for Europe's Mars craft

Rover Conducting Science Investigations at 'Spirit Mount'

MAVEN mission observes ups and downs of water escape from Mars

EXO WORLDS
Beaches, skiing and tai chi: Club Med, Chinese style

NASA begins tests to qualify Orion parachutes for mission with crew

New Zealand government open-minded on space collaboration

Growing Interest: Students Plant Seeds to Help NASA Farm in Space

EXO WORLDS
Chinese astronauts reach orbiting lab: Xinhua

Astronauts enjoy range of delicacies on Shenzhou XI

China to enhance space capabilities with launch of Shenzhou-11

China launches 2 astronauts for 33-day mission

EXO WORLDS
Two Russians, one American blast off to ISS

Tools Drive NASA's TReK to New Discoveries

New Instrument on ISS to Study Ultra-Cold Quantum Gases

Hurricane Nicole delays next US cargo mission to space

EXO WORLDS
Swedish Space Corporation Celebrates 50th Anniversary of Esrange Space Center

Four Galileo satellites are "topped off" for Arianespace's milestone Ariane 5 launch from the Spaceport

US-Russia Standoff Leaves NASA Without Manned Launch Capabilities

Ariane 5 ready for first Galileo payload

EXO WORLDS
ALMA spots possible formation site of icy giant planet

Proxima Centauri might be more sunlike than we thought

Stars with Three Planet-Forming Discs of Gas

TESS will provide exoplanet targets for years to come

EXO WORLDS
Lego-like wall produces acoustic holograms

U.S. State Dept. approves $194 million radar sale to Kuwait

Pushing the boundaries of magnet design

Polymer breakthrough to improve things we use everyday




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News






The content herein, unless otherwise known to be public domain, are Copyright 1995-2017 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement