general relativity

A team of scientists monitored the Milky Way galaxy's center to test Einstein’s theory of general relativity.
Whereas general relativity took a single genius (Einstein) a decade to create, that deeper theory -- known as a quantum theory of gravity -- has flummoxed generations of geniuses for a century.
Spacetime is not what Newton supposed: the Euclidean backdrop to events, like the stage of a play. Spacetime is participatory
There have been many scientific highlights of physics and astronomy in recent years: the Higgs Boson, landing a probe on a comet, and an amazing fly-by of Pluto. But all this is dwarfed by what has been announced this week. A new era of science has begun.
Now we can illustrate that General Relativity (GR) is not consistent with emergence. In GR the gravitational field is essentially
Gravitation proved to be far more than its jumble of equations, nonlinear structure, and famous text-boxes. Though several newer textbooks have displaced the book from graduate students' syllabi, none has rivaled the book's cross-over appeal.
This month marks the 100th anniversary of Albert Einstein's theory of general relativity. Amid all the celebrations and conferences, it is easy to forget about the real human being who actually did it. But if you live in Princeton, and his piano is in your living room, he is always present.
For someone who is determined to get propellantless propulsion off the ground, I worry that there isn't enough experimental research to make propellantless propulsion a reality sooner rather than later.
On November 25, 1915, Albert Einstein finally announced the complete mathematical details of his General Relativity Theory in the last of a series of four papers, but gravity and the nature of space itself, remain as mysterious today as they were back then.
The famed physicist reveals a new idea for how information might be able to escape a black hole.
Three great unsolved mysteries remain, and they are the same riddles asked by ancient Greek philosophers: What is the universe made of? Where did the universe come from? How do we know what's real?
All physics is error prone and then there is bad physics. I deconstruct one of the most controversial antigravity experiments on the internet, so that we as a general population are able to differentiate misinformation from the real thing.
I forecast that both string and quantum gravity theories will be dead by 2017.
The question we should be asking is not, can we travel faster than light (FTL) but how do we bypass LFT? Or our focus should not be how to travel but how to effect destination arrival.
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."
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.
"It looks like we are at a relatively primitive early stage in cosmology, where we find the constituents that are necessary
A pulsar consists of a neutron star, the leftover core of a massive star that has blown up in a supernova explosion. The