“Is Our Universe Extremely Unnatural, a Weird Permutation?” (Weekend Feature)

 

The Universe

 

“Is our universe extremely unnatural, a weird permutation among countless other possibilities, observed for no other reason than that its special conditions allowed life to arise, or, are the properties of the universe are inevitable, predictable, that is, ‘natural,’ locking together into a sensible pattern?” This is the question, the great unknown, that preoccupies theoretical physicist Nima Arkani-Hamed, a professor at the Institute for Advanced Study (IAS) in Princeton, N.J.

(more…)

Signals From an Extraterrestrial Civilization Could Be Older Than 90,000 Years (Weekend Feature)

Alien Contact

 

“For all we know, if galactic radiation-emitting civilizations exist, they could be located anywhere in the Milky Way. A signal reaching Earth could thus be as old as about 90,000 years, that is the time it takes for electromagnetic waves to cover the distance between us and the opposite edge of our galaxy, and this time span becomes even larger if we take into account signals from other galaxies. It is thus not unreasonable to think that, at the time we receive a signal, the emitting civilization no longer exist,” wrote Claudio Grimaldi, guest scientist at the Laboratory of Statistical Biophysics (LBS), Ecole Polytechnique Fédérale de Lausanne (EPFL), Switzerland in an email to The Daily Galaxy.

(more…)

Rarest Thing Ever Detected –“One Trillion Times Age of the Universe” 

 

Cluster Abell 3827

 

“We actually saw this decay happen. It’s the longest, slowest process that has ever been directly observed, and our dark matter detector was sensitive enough to measure it,” said Ethan Brown, an assistant professor of physics at Rensselaer Polytechnic Institute about a process that takes more than one trillion times longer than the age of the universe. “It’s amazing to have witnessed this process, and it says that our detector can measure the rarest thing ever recorded.”

(more…)

Did the Big Bang Make Cracks in Spacetime to What Would Intelligent Aliens Mean? (The Galaxy Report)

Super Earths Could Be Habitable for 80 Billion Years (The Galaxy Report)

 

Today’s stories include Earth’s algae and moss could survive under the light of another star to Ancient stars of the Milky Way’s center confirmed, and much more.

(more…)

Eerie Implications of Hawking Points –“Corpses of Black Holes from Before the Big Bang”

"Hawking Points" --The Corpses of Black Holes from Before the Big Bang

 

“If space is truly infinite,” observes Dan Hooper, head of the Theoretical Astrophysics Group at the Fermi National Accelerator Laboratory, in At the Edge of Time, “the implications are staggering. Within an infinite expanse of space, it would be hard to see any reason why there would not be an infinite number of galaxies, stars, and planets, and even an infinite number of intelligent or conscious beings, scattered throughout this limitless volume. That is the thing about infinity: it takes things that are otherwise very unlikely and makes them all inevitable.”

(more…)

Does Quantum Gravity Cast Doubt On Fate of Black Holes?

 

LIGO Black Hole

 

 

“The fate of black holes in a quantum theory of gravity is, in my view, the most important problem in theoretical physics,” said Jorge Pullin, the Horace Hearne professor of theoretical physics at LSU.

(more…)