Supermassive black holes have been described by astronomers as the “Gates of Hell” and “one-way doors out of the universe.” Now, the existence of primordial black holes, gravity wells formed just moments after the Big Bang that some scientists have suggested could be an explanation for dark matter, can be tested by scientists using gravitational waves.
What if gravity is an illusion, a cosmic side effect of something else going on at deeper levels of reality? The classical theory of gravity is in dire need of new approaches, since it doesn’t combine well with quantum physics. Both theories, crown jewels of 20th century physics, cannot be true at the same time. A Dutch theoretical physicist and string theorist, Erik Verlinde, proposes a starkly different theory – the theory of emergent gravity. “For me gravity doesn’t exist,” he says. “We might be standing on the brink of a new scientific revolution that will radically change our views on the very nature of space, time and gravity.”
As of Aug. 20, NASA’s InSight spacecraft had covered 172 million miles (277 million kilometers) since its launch 107 days ago. In another 98 days, it will travel another 129 million miles (208 million kilometers) and touch down in Mars’ Elysium Planitia region, where it will be the first mission to study the Red Planet’s deep interior. InSight stands for Interior Exploration using Seismic Investigations, Geodesy and Heat Transport.
“We expect TESS will discover a number of planets whose atmospheric compositions, which hold potential clues to the presence of life, could be precisely measured by future observers,” said George Ricker, TESS principal investigator. (more…)
"Most theories of human evolution give the impression that humans are markedly distinct from apes anatomically, but these are unverifiable 'just-so stories'. The real evidence shows we are not so different overall. This study highlights that a thorough knowledge of ape anatomy is necessary for a better understanding of our own bodies and evolutionary history."
When the New York Times reported Saturday that the Pentagon had had taken part in a partially declassified program at a cost of $22 million to investigate UFOs, called the Advanced Aerospace Threat Identification Program (AATIP), SETI Institute senior astronomer Seth Shostak told Inverse magazine in an interview "that there is something unnerving about this story, but it’s not the UFOs.".