The Alien Observatory --Odd White-Dwarf Star System Harbors a 13-Billion-Year-Old Planet (WATCH VIDEO)
"In the quest for extraterrestrial biological signatures, the first stars we study should be white dwarfs," said Avi Loeb, theorist at the Harvard-Smithsonian Center for Astrophysics (CfA) and director of the Institute for Theory and Computation. Even dying stars could host planets with life - and if such life exists, we might be able to detect it within the next decade.
"The X-Games of Astronomy" --Scientists Close to Actual Pictures of Milky Way's Supermassive Black Hole (WATCH Today's 'Galaxy' Stream)
A super-powered radio telescopes has turned the Earth into one giant eye --the Event Horizon Telescope (EHT), a multinational effort involving more than 100 researchers--all pointing to Sagittarius A*—the supermassive black hole at the center of our galaxy first forecast by Albert Einstein and his theory of general relativity, and since then the subject of study by countless theoretical physicists, among them the famous cosmic detective Stephen Hawking.
"Ultimate Source a Mystery" --Earth's Largest Cosmic Ray Observatory Provides Evidence of Extragalactic Origins
Cosmic rays are atomic nuclei that travel through space at speeds close to that of light. Low-energy cosmic rays come from the Sun or from our own Galaxy, but the origin of the highest-energy particles has been the subject of debate ever since they were first discovered fifty years ago: do they come from our Galaxy or from distant extragalactic objects?
Most Mysterious Phenomena in the Universe --"FRB Signals Occur Once Every Every Second from Unknown Sources" (WATCH Today's 'Galaxy' Stream)
"In the time it takes you to drink a cup of coffee, hundreds of FRBs may have gone off somewhere in the Universe," said Avi Loeb, at the Harvard-Smithsonian Center for Astrophysics, who recently speculated that these signals may be signals from extraterrestrial civilizations. "If we can study even a fraction of those well enough, we should be able to unravel their origin."
In September 2016, just before the asteroid 288P made its closest approach to the Sun, it was close enough to Earth to allow astronomers using the Hubble Space Telescope to observe the intriguing characteristics of an unusual type of object in the asteroid belt between Mars and Jupiter: two asteroids orbiting each other and exhibiting comet-like features, including a bright coma and a long tail. This is the first known binary asteroid also classified as a comet.
Not one but two gigantic black holes, separated by less than 1 light-year and together harbor about 40 million times the mass of the sun, lurk at the heart of the distant spiral galaxy NGC 7674, which lies about 400 million light-years from Earth, accoring to a a new study. The existence of binary black holes, roughly ten times the mass of Sun, got confirmed by the recent detection of gravitational waves by the LIGO telescope in 2015.
BBC Interviews Head of NASA Astrobiology --"Life on Saturn's Enceladus" (WATCH Today's 'Galaxy' Stream)
Astrophysicist Paul Davies at Arizona State University suggests that advanced technology might not even be made of matter. That it might have no fixed size or shape; have no well-defined boundaries. Is dynamical on all scales of space and time. Or, conversely, does not appear to do anything at all that we can discern. Does not consist of discrete, separate things; but rather it is a system, or a subtle higher-level correlation of things.
EcoAlert --Mathematics Predicts Earth's 6th Mass Extinction Threshold Reached in 2100: "After Oceans Add 300 Gigatons of Carbon from Human Activities"
“How can you really compare these great events in the geologic past, which occur over such vast timescales, to what’s going on today, which is centuries at the longest?” says MIT geophysicist Daniel Rothman. “So I sat down one summer day and tried to think about how one might go about this systematically.”