- Massive black Hole Discovered
- What will the sky look like after Milky Way merges with Andromeda Galaxy?
- Charting the place of our sun in the galaxy
Massive Black Hole Discovered
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It’s a stellar black hole — the type that forms after stars die, collapse, and explode. Researchers had previously believed that the size limit was no more than 20 times the mass of our sun because as these stars die, they lose most of their mass through explosions that expel matter and gas swept away by stellar winds.
This theory has now been toppled by LB-1, the newly-discovered black hole. Located about 15,000 light years away, it has a mass 70 times greater than our sun, according to
a press release from the Chinese Academy of Sciences.READ ALL ABOUT! https://www.cnn.com/2019/11/28/asia/china-black-hole-discovery-intl-hnk-scli-scn/index.html
What will the sky look like after Milky Way merges with Andromeda Galaxy? Our galaxy‘s date with destruction
The Milky Way is on a collision course with its neighbor, the Andromeda Galaxy. What will the night sky look like after the crash?
Our galaxy, the Milky Way, and its nearest large neighbor, the Andromeda Galaxy (M31), are on a collision course. Billions of years from now, the merger will transform the structure of both galaxies and create a new arrangement of stars we have dubbed Milkomeda (“milk-AHM-mee-da”). The merger will radically transform the night sky. But into what?
Currently, the Milky Way’s thin disk of stars and gas appears as a nebulous strip arching across the summer sky. As Andromeda grazes the Milky Way, a second lane of stars will join the one that presently graces the night sky. After the final merger, the stars will no longer be confined to two narrow lanes, but instead scatter across the entire sky.
In our research, we have explored the Milky Way’s fate by simulating Milkomeda’s birth in a supercomputer. The simulations are at a sufficient level of detail to learn a lot about the coming merger and how it will change our perspective on the universe. Although we won’t be here to witness the event — nor to take responsibility for whether our forecast proves accurate — this is the first research in our careers that has a chance of being cited 5 billion years from now.
Charting the sun’s place in our stellar “Neighbourhood”.
Click image to enlarge, Click here to read the article.
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