Tag Archives: galaxy

A wobble reveals the most massive stellar black hole in our galaxy

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific developments and more. Astronomers have discovered the most massive known stellar black hole in the Milky Way galaxy after detecting an unusual wobble in space. The so-called ‘sleeping giant’, called Gaia BH3, has a mass almost 33 times… Read More »

Stars make a bigger mess in old galaxies, and scientists just discovered why

The more developed a galaxy is, the more chaotic the orbits of its many stars are, according to new research that answers an important detail about how galaxies age. Our sun revolves around the center of the galaxy once every 225 million years, at an average speed of 514,495 mph (828,000 km per hour). Astronomers… Read More »

Earliest building blocks of the Milky Way discovered near the galactic heart

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific developments and more. Astronomers have used the Gaia Space Telescope to spy on some of the Milky Way galaxy’s first building blocks: two ancient star streams called Shakti and Shiva that helped our home galaxy grow and evolve… Read More »

Cosmic Super Bowl? The black hole in the Milky Way shapes spacetime into a football

The supermassive black hole in the center of our galaxy spins so fast that it warps spacetime into an oval shape reminiscent of an American football (or a rugby ball for any non-American readers!). The finding comes from a careful study of radio and X-ray observations. According to Albert Einstein‘S theory of general relativityWhen a… Read More »