- What Big Bang? Universe May Have Had No Beginning at All
- Astronomers Discover Ancient Dust Filled Galaxy ~ Debunks earlier theories that earliest galaxies had no dust only gas
- Air Force: Military Satellite Explosion Linked to Power System Failure
- The Search for E.T. ~ A 2015 Documentary
- 7 Things you never knew existed ~ Volume #9
- Take a Tour of Ancient Rome in Google Earth
- A Family's Account of Experiences with a Bigfoot Including Chilling Audio Evidence
- Did Paul McCartney Really Die in 1966 & Near Death Experiences on Coast To Coast Radio AM
- 10 Amazing Tips To Improve Your Sleep
Posted: 03 Mar 2015 03:27 PM PST
Excerpt from spacedaily.com
What we don't know about the Universe... could fill the Universe. Two theoretical physicists have suggested nothing like the Big Bang played a role in the start of our universe 13.8 billion years ago, refuting Edwin Hubble's 1929 theory that the universe was contained in a single point in space and some violent event caused it to expand.
"Our theory suggests that the age of the universe could be infinite," study co-author Saurya Das, a theoretical physicist at the University of Lethbridge in Alberta, Canada, told LiveScience.
The new study denies claims of an infinitely small and dense point of matter being involved in the beginning of the Universe, as stated in the Big Bang Theory.
"So when we say that the universe begins with a big bang, we really have no right to say that," Robert Brandenberger, a theoretical cosmetologist at McGill University in Montreal told LiveScience.
The Big Bang theory comes from Einstein's general theory of relativity.
The two scientists looked at the two dominant physics theories, quantum mechanics and general relativity, and concluded that they cannot be reconciled as they both fail to explain dark matter.
So they decided to regroup, and found "holes in Einstein's theory."
"One way to test the theory is to look at how dark matter is distributed in the universe and see if it matches the properties of the proposed superfluid... If our results match with those, even approximately, that's great," Das said.
Both scientists confirm that the universe was once very small and hot, but agree that it is infinitely old.
Astronomers Discover Ancient Dust Filled Galaxy ~ Debunks earlier theories that earliest galaxies had no dust only gas
Posted: 03 Mar 2015 03:16 PM PST
Astronomers have discovered a dust-filled ancient galaxy from the very early universe, which debunks earlier theories that earliest galaxies had no dust but gas. Astronomers from the University of Copenhagen used the Very Large Telescope’s X-shooter instrument along with the Atacama Large Millimeter/submillimeter Array and discovered a galaxy, named Galaxy A1689-zD1, which is an ancient galaxy and far from Earth.
The astronomers stated that the galaxy which
they were surprised to discover is far more evolved system than expected. It had a fraction of dust similar to a very mature galaxy, such as the Milky Way. Such dust is vital to life, because it helps form planets, complex molecules and normal stars.
According to the astronomers A1689-zD1 is only observable by virtue of its brightness being amplified more than nine times by a gravitational lens in the form of the spectacular galaxy cluster. Without the gravitational boost, the glow from this very faint galaxy would have been too weak to detect.
The astronomers stated that they are viewing A1689-zD1 when the Universe was only about 700 million years old, which is 5% of its present age. According to them, it is a relatively modest system — much less massive and luminous than many other objects that have been studied before at this stage in the early universe and hence a more typical example of a galaxy at that time.
A1689-zD1 is being observed as it was during the period of reionization, when the earliest stars brought with them a cosmic dawn, illuminating for the first time an immense and transparent universe and ending the extended stagnation of the Dark Ages. Expected to look like a newly formed system, the galaxy surprised the observers with its rich chemical complexity and abundance of interstellar dust.
Dust plays an extremely important role in the universe – both in the formation of planets and new stars.
Darach Watson, Associate Professor at Dark Cosmology Centre, University of Copenhagen, and the lead author of the study, said, “After confirming the galaxy’s distance using the VLT we realized it had previously been observed with ALMA. We didn’t expect to find much, but I can tell you we were all quite excited when we realized that not only had ALMA observed it, but that there was a clear detection. One of the main goals of the ALMA Observatory was to find galaxies in the early Universe from their cold gas and dust emissions — and here we had it!”
The researchers hope that future observations of a large number of distant galaxies could help unravel how frequently such evolved galaxies occur in this very early epoch of the history of the universe.
Posted: 03 Mar 2015 03:11 PM PST
Excerpt from nbcnews.com
The military weather satellite that exploded in orbit last month apparently died of old age, U.S. Air Force officials say.
While investigators continue to study the dramatic Feb. 3 death of Defense Meteorological Satellite Program Flight 13 (DMSP-F13), the signs currently point not to a collision with a piece of space junk or other external cause but rather to an issue aboard the spacecraft, which launched in 1995.
"Basically, the spacecraft was 20 years old and experienced what appears to be a catastrophic event associated with a power system failure," Andy Roake, chief of the Current Operations Division at Air Force Space Command Public Affairs in Colorado Springs, told Space.com.
Investigators think that failure by itself probably blew apart DMSP-F13 — which occupied a sun-synchronous polar orbit about 500 miles (800 kilometers) above Earth — generating the cloud of debris that the Air Force's Joint Space Operations Center (JSpOC) has detected near the satellite. (To date, 43 pieces of debris have been identified.)
Indeed, Air Force officials have said that the military weather satellite explosion was preceded by a sudden spike in the power system's temperature, "followed by an unrecoverable loss of attitude control." It was first reported by SpaceNews, a Space.com partner, on Feb. 27.
DMSP-F13 launched in March 1995 and last year surpassed 100,000 orbits around Earth. The satellite contributed key data to a number of U.S. military operations overseas.
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