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Who's faster over 10 meters - the fastest sprinter in the world, or gravity? Also, explore a map of the big bang! http://www.bigbangregistry.com MinutePhysic... 
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From the NOVA PBS series "THE ELEGANT UNIVERSE', host Brian Greene guides us through Newton's discovery of gravity to the explanation of it, through Einsteins Theory of Relativity. Articles about ASTRONOMY: http://www.scoop.it/t/science-news?tag=astronomy
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Einstein's theory of gravity and quantum physics are expected to merge at the Planck-scale of extremely high energies and on very short distances. Now scientists have proposed a new quantum experiment using Planck-mass mirrors.
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Back in 2011, ground-breaking research by scientists at the University of York provided a new perspective on the physics of black holes. Black holes are objects in space that are so massive and compact they were described by Einstein as...
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From
io9
Gravity is strong enough to hold us to the surface of this planet, and powerful enough to make achieving orbit a tricky proposition. But why doesn't it crush us completely? It's because gravity is so much weaker than the other forces in the universe, something physicists have always struggled to explain.
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To understand the ideas and aims of string theory, it's useful to look back and see how physics has developed from Newton's time to the present day. One crucial idea that has driven physics since Newton's time is that of unification: the attempt to explain seemingly different phenomena by a single overarching concept. Perhaps the first example of this came from Newton himself, who in his 1687 work Principia Mathematicae explained that the motion of the planets in the solar system, the motion of the Moon around the Earth, and the force that holds us to the Earth are all part of the same thing: the force of gravity. We take this for granted today, but pre-Newton the connection between a falling apple and the orbit of the Moon would have been far from obvious and quite amazing.
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(PhysOrg.com) -- A team of current, past and future University of Central Florida students will float around in weightlessness like astronauts this month as part of a physics experiment that could provide valuable information for future trips to...
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Radical new research is attempting to characterize the properties of a fifth force that disrupts the predictions general relativity makes outside our own galaxy, on cosmic-length scales. GRAVITY: http://www.scoop.it/t/science-news?tag=gravity
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A distillery on the island of Islay carries out experiments in space to find out how its product matures without gravity.
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Einstein's theory of gravity and quantum physics are expected to merge at the Planck-scale of extremely high energies and on very short distances. At this scale, new phenomena could arise.
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(PhysOrg.com) -- When scientists discovered in 1998 that the Universe is expanding at an accelerating rate, the possibility that dark energy could explain the observation was intriguing.
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(PhysOrg.com) -- As a quantum theory of gravity, loop quantum gravity could potentially solve one of the biggest problems in physics: reconciling general relativity and quantum mechanics.
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Out of all these new ideas there is one that perhaps defies intuition more than all others: that space, when you zoom in on it, stops being a smooth and continuous whole and starts breaking up into little indivisible chunks of some kind. This idea is truly mind-boggling. When you think of little chunks you can't help but think of them as existing inside something else and this something is — well, continuous. Another visualisation is to imagine space becoming fuzzy at this fundamental scale. But what exactly does that mean? Fuzzy with respect to what? Our macroscopic intuition simply isn't equipped to deal with a non-continuous space. Maths is the only language in which to talk about this, but ordinary geometry won't do — we need a completely new model of space. Shahn Majid from Queen Mary, University of London, has developed such a model, based on something called non-commutative geometry. His work is a fascinating blend of abstract algebra, theoretical physics, philosophy and experiment. Plus went to see him to find out more.
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