Posted on 09/30/2018 12:34:32 PM PDT by ETL
Astronomers have a problem on their hands: How can you make planets if you don’t have enough of the building blocks?
Stars are born from colossal clouds of gas and dust and, in their earliest stages, are surrounded by a thin disk of material. Dust grains within this halo collide, sometimes sticking together. The clumps build up into planetary cores, which are big enough to gravitationally attract additional dust and gas, eventually forming planets.
But many details about this process remain unknown, such as just how quickly planets arise from the disk, and how efficient they are in capturing material. The disks, surrounded by an obscuring haze of gas and dust, are difficult to observe. But radio telescopes can penetrate the haze and investigate young stars. The brightness of radio waves emitted by dust in the disk can be used to give a reasonable estimate of its overall mass.
The Atacama Large Millimeter Array (ALMA), a radio observatory in the Atacama Desert in Chile, has made it far easier to study protoplanetary disks. In the new study, astronomers led by Carlo Manara of the European Southern Observatory in Munich, Germany, used ALMA to compare the masses of protoplanetary disks around young stars between 1 million and 3 million years old to the masses of confirmed exoplanets and exoplanetary systems around older stars of equivalent size. The disk masses were often much less than the total exoplanet mass—sometimes 10 or 100 times lower, the team will report in an upcoming paper in Astronomy & Astrophysics.
Although such findings have been reported before for a few star systems, the study is the first to point out the mismatch over several hundred different systems. “I think what this work does is really set this as a fact”
(Excerpt) Read more at sciencemag.org ...
Funny,
Would “Attraction” to form a star
be contrary to centrifugal force?
Science seems Unscientific sometimes.
There seems to be a concerted effort to portray scientists as a bunch of bumbling fools who just can’t seem to get their theories straight.
That's been the history of science from day 1. It's only with "GoreBull Warming" where's there no doubt about it, case closed.
Another big theory bites the dust.
Hey wait a second... this is another sneak attack on Settled Science and I’m not having any of it...
When you deny God, and then try and figure out how the universe and life created itself, you come across as looking foolish. Professing themselves to be wise, they became wise. Romans 1:22. worshipped and served the creature morethan the Creator. Romans 1:25
Do the Heathen Liberal thing Lie about it.
Scripture states God Holds All things
Together.
Scientists ain’t quite done
Building that “Tower of Babal.”
bingo! Just give them a few billion more years and they will figure it out!
mostly drivel
The rings of saturn are the visible answer.
The earth’s moon is all that remains of the earth’s rings
The obsession with time is ignorance in print
All you have to know is that gravity did it in it’s own sweet time
Gravitational attraction rules
Where did the dust come from?
Reminds me of an old joke about God and the devil and growing a tree. When the devil asked for some dirt, God said, make your own. /Game over.
*ping*
WTF 'Babal' is, eh?
Thanks ETL for the topic, fmdj for the ping. Science is a method, not a body of knowledge, and as Thomas Aquinas pointed out, it is the method for studying the physical world. This is additional information which concurs with previous studies, and the information wasn't available more than a century ago, much less thousands of years ago.
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