We are looking for Europeans of different nationalities that can speak about the refugee invasion in your country and how this REALLY is affecting you. Are you in Hungary, Greece, Germany, France, Italy, Austria or another country being heavily invaded? Please reach out: views@redicecreations.com or @rediceradio We want to speak with you!

Earth's Moon a rare species
2007-11-27 0:00

From: cosmosmagazine.com

Cosmic collisions: Artist's impression of bodies as big as mountain ranges smashing together. Such collisions form the basis of the planet-building process. An even bigger collision between Earth and a body the size of Mars is thought to have created our moon. Image: NASA/JPL/Caltech
Moons like the Earth's - which are formed in catastrophic collisions - are extremely rare in the universe, a study by U.S. astronomers suggests.

Billions of years ago, an object the size of Mars crashed into the Earth, hurling dust and debris into orbit. Some of this material eventually coalesced to form our Moon.

Now a new study in The Astrophysical Journal reports that only five to 10 per cent of planetary systems in the universe have moons created this way.

"When a moon forms from a violent collision, dust should be blasted everywhere," said lead author Nadya Gorlova of the University of Florida, Gainesville. "If there were lots of moons forming, we would have seen dust around lots of stars - but we didn't."

A trail of dust
Using NASA's Spitzer Space Telescope, Gorlova and colleagues looked for the dusty signs of similar collisions. They examined 400 stars that are all about 30 million years old - roughly the age of our Sun when Earth's moon formed.

They found only one out of the 400 stars immersed in the telltale dust. Taking into account the amount of time the dust should stick around, and the age range at which moon-forming collisions can occur, the researchers calculated the probability of a solar system making a moon like Earth's to be at most five to 10 per cent.

Rocky planet window
Like our moon, rocky planets are built up through messy collisions that scatter dust and debris around. Current thinking holds that this process lasts from about 10 to 50 million years after a star forms.

But the fact that Gorlova and her team found only one star out of 400 with collision-generated dust, suggests that the 30-million-year-old stars in the study have, for the most part, finished making their planets.

"We don't know that the collision we witnessed around the one star is definitely going to produce a moon, so moon-forming events could be much less frequent than our calculation suggests," said George Rieke of the University of Arizona, Tucson, a co-author of the study.

But for moon lovers, the news isn't all bad. For one thing, moons can form in different ways: the other moons in our solar system either formed simultaneously with their planet or were captured by their planet's gravity.

And even though the majority of rocky planets in the universe might not have moons like Earth's, there are billions of rocky planets out there, so five to 10 percent is a lot of moons.

Article from: http://www.cosmosmagazine.com/node/1720

Related Articles
Our Enigmatic Moon
Were we on the Moon in 2309 B.C.?
The Moon - What Is It And Who Made It?
Mysterious Moonbase Message
Red Ice Creations Radio - Ted Twietmeyer - What NASA isn't Telling you about Mars
Red Ice Creations Radio - Ted Twietmeyer - The Moon & Sun, Time & UFO's (Subscription)
'Lunar Ark' Proposed in Case of Deadly Impact on Earth
Red Ice Creations Radio - Joseph P Farrell - Cosmic War, Interplanetary Warfare & Mesopotamian Mythology
Red Ice Creations Radio - Joseph P Farrell - Interplanetary Warfare, Mythology & Nazi Occultism (Subscription)
Red Ice Creations Radio - Michael Tsarion - Lucifer & The Dark Side of the Sun
Ancient Moon 'computer' revisited
Velikovsky's Ghost Returns
Giant impact added to Earth's core

Latest News from our Front Page

NYU Professor: Fight climate change with hormone treatments on small children, 'closes the growth plates'
2015-10-08 21:40
‘Interviewed on the Sunrise Weekend morning show, NYU Professor Matthew Liao promotes hormone treatments on children ‘when their small’ to close their ‘growth plates’ and thus stunt child growth. Professor Liao says this helps fight climate change since ‘larger people consume more energy than smaller people.” Source: davidicke.com
Varg Vikernes on Compassion
2015-10-08 21:50
YouTube description: About Survivalism for Europeans. About Christian apologists. Learn how to act without any compassion with MYFAROG Source: youtube.com
Miranda Devine: Perth electrical engineer’s discovery will change climate change debate
2015-10-08 20:31
Dr David Evans has unpacked the architecture of the basic climate model which underpins all climate science. Picture: Thinkstock A mathematical discovery by Perth-based electrical engineer Dr David Evans may change everything about the climate debate, on the eve of the UN climate change conference in Paris next month. A former climate modeller for the Government’s Australian Greenhouse Office, with six degrees ...
Israeli news: "Islamization of Europe a good thing"
2015-10-08 0:56
Rabbi Baruch Efrati believes Jews should 'rejoice at the fact that Europe is paying for what it did to us for hundreds of years by losing its identity.' He praises Islam for promoting modesty, respect for God As concerns grow over the increasing number of Muslims in Europe, it appears not everyone is bothered by the issue, including an Israeli ...
Eradicating ISIS: Russia Unleashes Cruise Missiles, Causes Terrorist Exodus and Now Iraq Wants Help
2015-10-07 23:52
The war weary Syrian Army is finally getting the help it needs. (Photo Credit: Elizabeth Arrott) Putin is continuing to mop up the mess left behind by the West’s interference in Syria with immense success. Watch a video of this report here: On monday, we had the pleasure of bringing you a report detailing the long overdue obliteration of ISIS by Russian airstrikes ...
More News »