New research shows that there are at least two trillion galaxies in the universe. That is ten times more galaxies than previously estimated.
Previously it was believed that there were 200 billion galaxies in space, but the figure turns out to be much higher. The size of the universe was already incomprehensible large, prior to the research that showed that there are ten times as many galaxies than previously thought.
Astrophysicist Christopher J. Conselice of the University of Nottingham has published the results of work on the Hubble Space Telescope and other instruments in 'The Astrophysical Journal' last week. The investigations he and the research team have done shows that there are two trillion galaxies - at least.
- The universe is much bigger than anyone could have guessed. And the real number of galaxies may be even higher, says Conselice, according to the Guardian.
The researchers used the Hubble telescope to look at galaxies far away. Because of the speed of light, the telescope looks back in time. When photographing a galaxy 100 million light years away, we see the galaxy as it appeared 100 million years ago.
In the research project they saw 13 billion years back in time, but not even the Hubble telescope can see the oldest galaxy.
Therefore mathematical calculations were needed to come to the conclusion that there are at least two trillion galaxies.
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