Home > opinion, writing > How much do we know about the universe? Hubble’s Ultra Deep Field Experiment

How much do we know about the universe? Hubble’s Ultra Deep Field Experiment

September 13th, 2017

When we looked at the space at night, we see a lot of stars, dotted on a vast dark space. But is there anything in the dark area?

Guess, in the photo below, how many stars are in the red circle? None? A few? A few thousand? Billions of stars?

How many starts in the red circle?

How many starts in the red circle?

In 2002-2004, Hubble telescope zoomed in this region and found, in this seemingly empty space, there are not 10 stars, 1000 stars, but at least 3,000 galaxies each with hundreds of billions of stars!

There are 3 thousand galaxies with trillions of stars

There are 3 thousand galaxies with trillions of stars

What do we know about the universe?

Author: Xu Cui Categories: opinion, writing Tags:
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About the author:

Xu Cui is a human brain research scientist in Stanford University. He lives in the Bay Area in the United States. He is also the founder of Stork (smart publication alert app), PaperBox and BizGenius.

 

He was born in He'nan province, China. He received education in Beijing University(BS), University of Tennessee (Knoxville) (MS), Baylor College of Medicine (PhD) and Stanford University (PostDoc). Read more ...
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