Tag Archives: elliptical galaxies

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 »

These supernovae create a storm and contribute to cosmic life and death

Astronomers have discovered a previously unknown source of cosmic dust. Why is it important to detect this dust? Well, these particles actually act as building blocks for stars. The international team found that such dust can be created by a type of cosmic explosion that occurs when a dead white dwarf star removes material from… Read More »