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General Relativity

Toward a Quantum Theory of Gravity? (Part 2)

Mario Livio | Posted 07.02.2014 | Science
Mario Livio

One of the key goals of a quantum theory of gravity is to describe black holes as complex but self-consistent quantum systems. The problem is that as physicists have attempted to do just that, they have encountered the so-called "information paradox."

Cosmos Peacefully Settles the Score

Community Advocate Stuart | Posted 06.02.2014 | Science
Community Advocate Stuart

The message of Cosmos to people of faith is that divinity is a human exercise; that what makes us special isn't a book; that despite our ultimate insignificance, we can still understand the nature of the universe and our place in it; and that it is not a betrayal of faith to ask questions.

Big Discovery May Help Bring 'Theory Of Everything'

Space.com | Mike Wall | Posted 03.24.2014 | Science

The discovery that the universe really did expand at many times the speed of light immediately after the Big Bang should bring physicists slightly cl...

What Is Cosmic Consciousness? The Quest for Hidden Reality

Deepak Chopra | Posted 03.24.2014 | Healthy Living
Deepak Chopra

Is there such a thing as higher consciousness? For a tiny fraction of the population who believe they have experienced God directly, this is a spiritu...

Newfound Stellar Trio May Put Einstein Theory To The Test

| ADRIAN CHO | Posted 01.23.2014 | Science

In a cosmic coup, astronomers have found a celestial beacon known as a pulsar in orbit with not one, but two other stars. The first-of-its-kind trio c...

Dark Matter and Worst Packings

Frank Morgan | Posted 07.28.2013 | Science
Frank Morgan

Just as Einstein's theory of General Relativity explains gravity as curvature of the universe, Hugh Bray similarly incorporates dark matter into the geometry of the universe, altering not just the "Riemannian metric" but also the "connection."

Loophole May Allow Faster-Than-Light Travel, Physicists Say

Posted 05.14.2013 | Science

By: Jillian Scharr Published: 05/14/2013 11:20 AM EDT on TechNewsDaily In the "Star Trek" TV shows and films, the U.S.S. Enterprise's warp engine ...

Hunt For Elusive 'Gravity Waves' Heats Up

Posted 05.03.2013 | Science

By: Clara Moskowitz Published: 05/02/2013 02:07 PM EDT on SPACE.com In the next five years or so, scientists are poised to discover proof that spa...

Key Einstein Theory Faces Toughest Test Yet

Posted 04.26.2013 | Science

By: Clara Moskowitz Published: 04/25/2013 02:02 PM EDT on SPACE.com An extreme pair of superdense stars orbiting each other has put Einstein's gen...

Happy Birthday, Einstein!

The Huffington Post | Posted 03.14.2013 | Science

Happy birthday, Albert Einstein! One of history's most celebrated thinkers would have turned 134 today. His numerous contributions to physics in...

Science in the 21st Century: A Few Random Thoughts

Mario Livio | Posted 04.30.2013 | Science
Mario Livio

Predictions about the future of science and technology are notorious for turning out to be wrong. Nevertheless, we know of at least a few topics that will undoubtedly be active areas of research for the next half-century.

Space-Time Study Tests Key Einstein Concept

Posted 01.10.2013 | Science

By: SPACE.com Staff Published: 01/10/2013 12:38 PM EST on SPACE.com Space-time is smooth rather than foamy, a new study suggests, scoring a possib...

The Anthropic Principle

Amir Aczel | Posted 01.23.2014 | Science
Amir Aczel

For lack of a better explanation for the values of certain constants we end up conceding that something has to be a certain way, because it can't be otherwise if we are here to observe it.

The Measure of All Things

Mario Livio | Posted 12.02.2012 | Science
Mario Livio

Sizes in our universe are primarily determined by the weakness of gravity in the atomic microworld. As a result, all the structures that are dominated by gravitational effects (such as stars, galaxies, and the cosmos as a whole) have to be extremely massive.

What's The Smallest Thing In The Universe?

Posted 09.17.2012 | Science

By: Clara Moskowitz, LiveScience Senior Writer Published: 09/17/2012 08:05 AM EDT on LiveScience The answer to the enduring question of the sma...

The Golden Ratio and Astronomy

Mario Livio | Posted 10.22.2012 | Science
Mario Livio

The Golden Ratio, usually denoted by the Greek letter ϕ (phi), has the propensity of popping up where least expected, in a variety of natural phenomena and works of art.

Who Needs a Theory of Everything?

Mario Livio | Posted 08.28.2012 | Science
Mario Livio

There are at least two crucial circumstances in which we absolutely need a theory in which general relativity and quantum mechanics are compatible. One is the case of the objects we call black holes, and the second is the Big Bang.

The Large, the Small, and How to Connect Them

Mario Livio | Posted 08.26.2012 | Science
Mario Livio

In order to unify the theory of the large -- general relativity -- with the theory of the small -- quantum mechanics -- physicists had to examine the properties of spacetime on the tiniest scales. And here is where the problem arose.

Scientists Prepare For First Ever Black Hole

The Huffington Post | Travis Korte | Posted 01.18.2012 | Science

At the center of our galaxy, an enormous black hole has worked invisibly for billions of years, and now scientists are gearing up to snap its picture....

Beyond Genesis: Is Science Past the Big Bang Already?

Adam Frank | Posted 03.06.2012 | Science
Adam Frank

The Big Bang is, without doubt, one of the greatest achievements of human civilization. So why then are so many scientists waiting so expectantly for its immanent demise?