Up until this May, 2019, Sagittarius A* (Sgr A*), the Milky Way’s central supermasive black hole appeared like a massive, dormant volcano, a sleeping monster, a slumbering region of spacetime where gravity is so strong that “what goes into them does not come out.”
“We’re so excited, and have been preparing for years to make these measurements,” said Andrea Ghez, who directs the UCLA Galactic Center Group. “For us, it’s visceral, it’s now—but it actually happened 26,000 years ago!” said Andrea Ghez, who directs the UCLA Galactic Center Group about photons from a star known as S0-2 that makes a complete orbit in three dimensions around the supermassive black hole at the center of the Milky Way confirming Einstein’s theory of general relativity. The full orbit takes 16 years; the black hole’s mass is about four million times that of the sun.
The Galaxy Report newsletter brings you daily news of space and science that has the capacity to provide clues to the mystery of our existence and add a much needed cosmic perspective in our current Anthropocene Epoch.
Mystery of Gravity Could Soon Be Solved to Will Mars Samples Endanger Earth? (The Galaxy Report)
“Information Can Escape a Black Hole Both On the Outside and Possibly to Another Universe” (Stephen Hawking’s Paradox)
The Fourth Copernican Revolution: “Our Universe May Be One Patch of Space and Time In a Infinite Archipelago” (Weekend Feature)
Human Imprint on Earth’s Rocks to Our Inner Fish (Planet Earth Report)What the First Two Pictures of Black Holes Tell Us to What If Aliens We are Looking for are AI? (The Galaxy Report)
The Most Massive Objects in the Modern Universe –Primordial Relics of the Cosmic Microwave Background
Antarctica’s ‘Factorian Deep’ to Can We Think Without Language? (Planet Earth Report)
Mystery of Our Lopsided Universe to China’s Alien-Signal False Alarm (The Galaxy Report)
3-D Views of Interstellar Supernova “Cavities” Reveal Explosive Star-forming Regions
