Hubble’s work pushed the field of astronomy forward, starting with his paper demonstrating that some objects exist outside ...

In the 1920s, astronomers thought that the Milky Way was the entire universe. Hubble's discovery revealed a much bigger ...

Astronomers have discovered an extraordinary new giant radio galaxy with plasma jets 32 times the size of our Milky Way. Measuring 3.3 million light-years from end-to-end, the cosmic megastructure ...

Astronomers have discovered a giant radio galaxy with plasma jets stretching an incredible 3.3 million light-years—32 times ...

Then, all you'd need to do to work out how far away the star is would be to compare its true luminosity with ... to simply be stars forming on the edge of the Milky Way. Shapley's goal was to measure ...

Seen in polarised light for the first time, the image above is of Sagittarius A*, the supermassive black hole at the center of the Milky Way ... said Issaoun. Size comparison of the two black ...