M33 - Known as the Triangulum Galaxy is estimated as being some 3 million light-years from Earth and is also known as NGC 598 and is one of the most distant objects that can be seen by the naked eye.
NASA's Amazing Daily Image
Hubble Views a Galaxy Fit to Burst
This NASA/ESA Hubble Space Telescope image reveals the vibrant core of the galaxy NGC 3125. Discovered by John Herschel in 1835, NGC 3125 is a great example of a starburst galaxy — a galaxy in which unusually high numbers of new stars are forming, springing to life within intensely hot clouds of gas. Read More