Stars at the edge of our home galaxy appear to be moving more slowly than expected, scientists have revealed. Based on the speed of the stars near the center of the Milky Way, astronomers assumed that ...

One point of evidence in support of dark matter is the way in which the speed of stars, gas and dust in a galaxy varies with their distance from the center of the galaxy, known as the galactic ...

A study by MIT physicists suggest the Milky Way’s gravitational core may be lighter in mass, and contain less dark matter, than previously thought. By clocking the speed of stars throughout the Milky ...

One of the earliest indications of the existence of dark matter came from an examination of the rotation of nearby galaxies. The study showed that stars orbit the galaxy at speeds that indicate ...

For reasons that remain mysterious, it seems our galaxy is different from the others. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Stars have ...

Researchers have found a significant new relationship in spiral and irregular galaxies: the acceleration observed in rotation curves tightly correlates with the gravitational acceleration expected ...

Details are available in the January 10th, 2006, edition of The Astrophysical Journal 636, pp. 721-741. The paper entitled "Galaxy Rotation Curves Without Nonbaryonic Dark Matter" is co-authored by ...