Tag: galactic center
-
Sagittarius A* Reveals Violent Past of Milky Way’s Black Hole
Introduction: A Black Hole With a Hidden History The supermassive black hole at the heart of our galaxy, known as Sagittarius A* (Sgr A*), has long been thought of as a quiet giant. Recent findings from an international X-ray spacecraft challenge that quiet image, suggesting Sgr A* was far more violent billions of years ago.…
-
How X-ray Discovery Rewrites the Milky Way’s Black Hole History
The Sleeping Giant Awakens in X-ray Light For years, scientists have described the Milky Way’s central supermassive black hole, Sagittarius A*, as a quiet giant—largely dormant and unremarkable in its activity. Recent data from an international fleet of X-ray observatories tells a dramatic different story. By tracing powerful X-ray echoes and high-energy outbursts, researchers have…
-
Baby Star Factory: JWST Peers into Sagittarius B2’s Dusty Birth Cloud
Introduction: A Window into Star Formation NASA’s James Webb Space Telescope (JWST) has turned its gaze toward Sagittarius B2 (Sgr B2), a colossal molecular cloud near the Milky Way’s heart. Although it contains only about 10% of the galactic center’s gas, this cloud is a beacon of stellar birth, responsible for a large share of…
-
James Webb telescope spies a monstrous molecular cloud shrouded in mystery – Space photo of the week
Overview: A New Look at Sagittarius B2 The James Webb Space Telescope (JWST) has offered astronomers a rare glimpse into one of the Milky Way’s most enigmatic nurseries: the Sagittarius B2 molecular cloud. Known for its colossal size, dense dust, and rich chemistry, Sgr B2 sits in the galaxy’s dusty heart and has long been…
-
Sagittarius B2: JWST Spies a Monster Molecular Cloud
Introduction: A Giant Cloud Captured by the James Webb Space Telescope The James Webb Space Telescope (JWST) has offered the public another stunning look at one of the Milky Way’s most enigmatic regions: the Sagittarius B2 (Sgr B2) molecular cloud. Spanning tens of light-years in size and rich with gas, dust, and complex molecules, Sgr…
-
Eerie Milky Way Glow Could Reveal Dark Matter: A Cosmic Giant Unveiled
Scientists Report a Potential Breakthrough in Dark Matter Detection A team from Johns Hopkins University and the Leibniz Institute for Astrophysics says a surprising gamma-ray glow at the center of the Milky Way may be the long-sought evidence for dark matter. If confirmed, this could mark the first solid proof that dark matter — the…
-
Eerie Milky Way Glow Could Signal Dark Matter’s First Real Proof
Groundbreaking finding links Milky Way gamma glow to dark matter A team of scientists from Johns Hopkins University and the Leibniz Institute for Astrophysics contends they may have finally detected dark matter in the Milky Way. By analyzing gamma-ray emissions captured by NASA’s Fermi satellite, the researchers argue that a diffuse excess glow at the…
-
Scientists detect possible wind from the Milky Way’s supermassive black hole
Introduction: A new clue from the heart of the Milky Way For years, the supermassive black hole at the center of our Milky Way—known as Sagittarius A* (Sgr A*)—has reminded us that galaxies are not calm, static islands in space. While it is relatively quiet compared with the blazing beasts that light up quasars elsewhere,…
-
Wind Blows from the Milky Way’s Black Hole: Evidence Emerges
What the discovery suggests For decades, scientists have watched supermassive black holes at the centers of galaxies both consume material and, on occasion, spew it back into space as powerful outflows. While some active galaxies proudly display dramatic jets, our Milky Way’s own Sagittarius A* has long appeared unusually quiet. The latest observations, however, hint…
-
Setting Bounds On SETI: A Hybrid Strategy Using BOAT GRB 221009A
Overview: the SETI data deluge The Search for Extraterrestrial Intelligence (SETI) faces a data scale problem. The universe is vast, and even if we could detect signals from other civilizations, deciding where to look, which frequencies to monitor, and when to listen is a monumental task. Against this backdrop, a new arXiv preprint by Naoki…