Galaxies are vast gravitational structures that harbor billions to trillions of stars, as well as, interstellar gas, dust, and nebulae as well as the dark matter that binds them together. Our solar ...
This NASA/ESA Hubble Space Telescope image features an uncommon galaxy with a striking appearance. NGC 7722 is a lenticular galaxy located about 187 million light-years away in the constellation ...
Look closely at this image from NASA's Hubble Space Telescope and you'll see galaxies of various shapes and sizes clustered together toward the center-left of the image. A few foreground stars shine ...