On the night of Oct. 5 to 6, 1923, Edwin Hubble discovered a new star — and revealed the utter vastness of the universe. Hubble was looking at the cosmos with the 100-inch Hooker telescope at the ...

In October 1923, Edwin Hubble utilized the 100-inch Hooker telescope to photograph the Andromeda Nebula, identifying a variable star within it. Hubble applied the known period-luminosity relationship ...

Hubble's sharp resolution allows observers to pore over the galaxy's details, showing that it has traits of both spiral and elliptical galaxies. Its core appears unusually smooth and gas-poor, traits ...

Due to its stellar activity, the galaxy has become a favorite for astronomers using the Hubble Space Telescope. Orbiting ...

Hubble has captured a striking new image of NGC 2775, a galaxy that defies easy classification. Blending features of spirals, ellipticals, and lenticulars, its puzzling structure may be the result of ...

On the night of Oct. 5 to 6, 1923, Edwin ... galaxies. On a dark night, our neighboring galaxy had always been visible to the naked eye, but over the years, skywatchers had debated whether it was a ...