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Scientists have used a supercomputer to simulate what the Universe was like as the first galaxies were forming. The model maps how matter is thought to have been distributed a few hundred million years after the Big Bang. The work should help astronomers hunt down ancient galaxies using the latest telescope technologies - they will know what to look for.

2009-02-12

 universe Big Bang simulation supercomputer
The inspiration for their theory isn't just an explanation for the Big Bang our Universe experienced 13.7 billion years ago, but lies in an attempt to explain one of the largest mysteries in physics - why time seems to move in one direction. The laws that govern physics on a microscopic scale are completely reversible, and yet, "no one gets confused about which is yesterday and which is tomorrow". Physicists have long blamed...

2008-06-06

 philosophy space time physics universe cosmology Big Bang
Astronomers have confirmed that an exploding star spotted by Nasa's Swift satellite is the most distant cosmic object to be detected by telescopes. In the journal Nature, two teams of astronomers report their observations of a gamma-ray burst from a star that died 13.1 billion light-years away. The massive star died about 630 million years after the Big Bang...

2009-10-28

 astronomy Big Bang distance
By smashing gold particles together at super-fast speeds, physicists have basically melted protons, creating a kind of "quark soup" of matter that is about 250,000 times hotter than the center of the sun and similar to conditions just after the birth of the universe.Scientists reported in 2005 that they suspected they had created this unique state of matter, but for the first time they have verified that the extreme temperatures...

2010-02-15

 Big Bang proton neutron quark gluon temperature liquid universe
WHY does time flow forwards rather than backwards? Perhaps the answer to this long-standing mystery lies in what happened to the universe when gravity first took hold about 380,000 years after the big bang.

2008-12-31

 Big Bang time entropy
In a mathematically perfect universe, we would be less than dead; we would never have existed. According to the basic precepts of Einsteinian relativity and quantum mechanics, equal amounts of matter and antimatter should have been created in the Big Bang and then immediately annihilated each other in a blaze of lethal energy.

2010-05-17

 cosmology antimatter matter philosophy Big Bang annihilation physics
The colossal black holes at the centre of galaxies probably formed shortly after the Big Bang.

2010-08-25

 universe Big Bang black hole galaxy physics
Researchers at the Large Hadron Collider (LHC) are getting set to create the Big Bang on a miniature scale.

2010-11-03

 LHC physics astrophysics cosmology Big Bang
Evidence of events that happened before the Big Bang can be seen in the glow of microwave radiation that fills the Universe, scientists have asserted. Renowned cosmologist Roger Penrose said that analysis of this cosmic microwave background showed echoes of previous Big Bang-like events. The events appear as "rings" around galaxy clusters in which the variation in the background is unusually low...
 Roger Penrose physics cosmology astronomy Big Bang universe philosophy constant nature law cycle aeon time space microwave galaxy
The Large Hadron Collider has successfully created a "mini-Big Bang" by smashing together lead ions instead of protons...

2010-11-08

 LHC Big Bang temperature physics
God's mind was behind complex scientific theories such as the Big Bang, and Christians should reject the idea that the universe came into being by accident, Pope Benedict said on Thursday. "The universe is not the result of chance, as some would want to make us believe," Benedict said on the day Christians mark the Epiphany, the day the Bible says the three kings reached the site where Jesus was born by following a star...

2011-01-06

 Pope cosmology Big Bang creationism religion Catholic Church Christianity
Neutrinos are among the fundamental building blocks of matter. They swarm all about us. The Sun, for example, releases them in huge quantities when it fuses hydrogen to make helium - the raw nuclear process at its core. They are, however, very difficult to study because they interact so weakly with normal matter. Hence, their nickname - "ghost particles". Nonetheless, scientists have been able to discern three flavours - electron...

2011-06-15

 neutrino particle physics nuclear cosmology antimatter universe Big Bang
A cataclysmic explosion of a huge star near the edge of the observable Universe may be the most distant single object yet spied by a telescope. Scientists believe the blast, which was detected by Nasa's Swift space observatory, occurred a mere 520 million years after the Big Bang. This means its light has taken a staggering 13.14 billion years to reach Earth...

2011-05-25

 light time universe cosmology astronomy distance space explosion star Big Bang