Astronomers may soon have the answer to what is perhaps the greatest mystery of modern science –is dark energy a uniform force across space and time, or has its strength evolved over eons?
As life has evolved its complexity has increased exponentially, just like Moore’s law, which states that the number of transistors on an integrated circuit doubles approximately every two years. The regression suggests that if life takes 10 billion years to evolve to the level of complexity associated with homo sapiens, then we may be among the first, if not the first, intelligent civilization in the Milky Way, negating Drake’s Equation.
Could there be as yet unknown supermassive objects lurking at the hearts of galaxies other than black holes? An object so strange that it has managed to avoid gravitational collapse to form a singularity, the smallest object in the universe in an infinitely Planck-scale space, where density and gravity become infinite and space-time curves infinitely, and where the laws of physics as we know them cease to operate?
“Primordial black holes (PBHs) remain hypothetical objects for the moment,” says Alvise Raccanelli of CERN. “Initially proposed by Stephen Hawking in 1971, they have come back to the fore in recent years as possible candidates for explaining dark matter. It is believed that dark matter accounts for approximately 80 percent of all matter present in the universe, so to explain even just a small part of it would be a major achievement. Looking for evidence of the existence of PBHs, or excluding their existence, provides us with information on the physics of the primordial universe.”
Another big week for “The Galaxy Report” with insights into our Solar System’s mysterious magnetic fields to the first planet found to be orbing three stars to physicist Leonard Susskind, founding director of the Stanford Institute for Theoretical Physics, on why black holes are so astonishing. (more…)
It’s been another prolific week in the Cosmos from Homo sapiens might be the children of black holes and neutron stars to intrepid scientists are questioning Einstein’s theory of spacetime. Could he be wrong? We wouldn’t bet on it.