25 Years of Scientific Discovery

It was launched 25 years ago and has given humankind a glimpse at some of the farthest and earliest cosmic phenomenon in the observable Universe. In just 405 years, since Galileo first chose to point a telescope up rather than forward, humankind has made incredible strides in space exploration. But none has done more for modern astronomy than the Hubble Space Telescope (HST). The HST was built by NASA, with contributions from the European Space Agency, and is operated by the Space Telescope Science Institute. It is one of the most iconic scientific instruments ever created and is used by astronomers across the globe.

Named after American astronomer Edwin Hubble (1889-1953) -- whose work led to the proposal the cosmos is expanding -- the telescope of the same name has captured images which have changed our perception of the Universe forever. One such snapshot is the Ultra Deep Field -- an image which shows more than 10,000 galaxies compacted into just a tiny portion of the night sky. The picture, which took a week's worth of exposure using the HST, shows the evolution of galaxies from nearby swirling masses of stars to tiny red blurs which represent the earliest formations of galaxies some 13 billion-years-ago.

 

The ability to see so deeply into the cosmos has helped scientists confidently calculate the age of the Universe.


Kemo D. 7

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