Images mark 20 years of Hubble telescope

In the two decades since its launch, the Hubble Space Telescope has transformed the way we see and understand our universe.
Now, to mark the observatory's 20th anniversary, scientists at Nasa have selected the most dramatic and scientifically-important images it has taken.
Massive clouds of dust where new stars are born, the bursts of light released when stars die, beautiful structures of galaxies and even new planets in distant parts of the solar system are among the images to be singled out.
Nasa has released the images in a new book, Hubble: A Journey Through Space and Time.
They also show how the telescope, which has cost around $10 billion to build, launch and maintain, has evolved during its 20 year history.
continue reading