科学与环境
Webb reveals metal-rich gas around Milky Way's central black hole
来源: Phys.org - latest science and technology news stories · 发布于
The gas orbiting Sagittarius A (Sgr A*), the supermassive black hole at the center of the Milky Way galaxy, is rich in metals, researchers at McGill University's Trottier Space Institute have found. The metal enrichment probably resulted from stars that exploded and released mate
The gas orbiting Sagittarius A (Sgr A*), the supermassive black hole at the center of the Milky Way galaxy, is rich in metals, researchers at McGill University's Trottier Space Institute have found. The metal enrichment probably resulted from stars that exploded and released material into the black hole's surroundings over time, they said.
相关报道
James Webb reveals a massive cosmic structure that challenges our understanding of the Universe
NASA’s James Webb Space Telescope has revealed an ancient galaxy cluster with an unexpectedly dense concentration of dark matter, challenging theories about how the universe developed. The discovery also uncovered a surprising connection between scattered starlight and invisible
All Top News -- ScienceDaily ·
Expanded earned income tax credit improved housing security for childless young adults
A temporary expansion to the earned income tax credit improved housing security for young workers who don't have children, a new study shows.
Phys.org - latest science and technology news stories ·
Simpler recycling process recovers pure raw materials from acrylic glass without solvents
Large quantities of acrylic glass are used worldwide in a wide range of applications, from windowpanes and car taillights to furniture. The polymer is also known by the brand name Plexiglas. All too often, acrylic glass still ends up as waste, even though it is well suited to rec
Phys.org - latest science and technology news stories ·
New wheat disease detection tool established in Tanzania
John Innes Centre researchers have trained scientists from across Tanzania to use new loop-mediated isothermal amplification (LAMP) assays to rapidly detect wheat blast, a looming fungal threat to wheat harvests.
Phys.org - latest science and technology news stories ·
How enzymes locally block cell wall repair, allowing cells to fuse in an irreversible manner
The fusion of two cells is a decisive event in the sexual reproduction of many organisms. In fungi, cells must not only bring their membranes together and merge them, but also locally open their protective cell wall.
Phys.org - latest science and technology news stories ·