Dark matter can be a real drag. The pull of that unidentified, invisible matter in the Milky Way may be slowing down the rotating bar of stars at the galaxy’s heart. Based on a technique that re ...

But the Milky Way’s rotation curve isn’t like that. Mysteriously, outside the bulge at the galaxy’s center, the curve mostly flattens out rather than sloping downward.

The rotation of the Milky Way bar has slowed by almost a quarter. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The Milky Way rotates at ...

Galaxy rotation curves, an early hint of dark matter, change with age. John Timmer – Mar 15, 2017 1:43 pm | 121 The European Southern Observatory's Very Large Telescope, based in Chile.

So dark matter can account for the rotational dynamics of a galaxy just as MoND models can. That doesn't rule out MoND, but it does mean that MoND isn't necessary in this case. Paper: Aaron D ...

They discovered that dark matter accounted for roughly 60% of each galaxy's total mass by examining their rotation curves.

New research on galaxy rotation casts a shadow on dark matter. Newsletters Games Share a News Tip. Featured. Featured. ... According to the dark matter model, a galaxy's mass isn't concentrated in ...

The Galactic rotation velocity from this research is higher than that of previously known (220km/s). This results in the conclusion that the mass of the Galaxy, especially that of dark matter, is ...

Astrophysics; Galaxy Rotation Curves and Dark Matter. Posted: May 20, 2025 | Last updated: May 20, 2025. Physics and Python stuff. Most of the videos here are either adapted from class lectures or ...

No one knows for sure what dark matter is. But we know we need something to explain what we see in the universe, and we’ve crossed a few ideas off of our ... Three commonly cited unusual astrophysical ...

Astronomers were surprised to find a galaxy that lacks an invisible but essential piece—dark matter. Dark matter, the mysterious theoretical substance that makes up 27 percent of our universe ...