This image shows the orbits of the six G objects at the center of our galaxy, with the supermassive black hole indicated with a white cross. Stars, gas and dust are in the background.
After stars die, they expel their particles out into space, which form new stars in turn. In one case, stardust became embedded in a meteorite that fell to Earth. This illustration shows that stardust could flow from sources like the Egg Nebula to create the grains recovered from the meteorite, which landed in Australia.
The former North Star, Alpha Draconis or Thuban, is circled here in an image of the northern sky.
Galaxy UGC 2885, nicknamed the "Godzilla galaxy," may be the largest one in the local universe.