What new science will Hubble be doing after it is repaired?
I am interested in the Wide Field Camera 3, which is going to be looking at the very distant Universe. We’ll be looking back to when the Universe was less than one billion years old (the Universe today is almost 14 billion years old). The light from these galaxies will have travelled 3 x 10^26 metres before it arrives at Hubble. That’s 3 with 26 zeroes after it (300,000,000,000,000,000,000,000,000). We’re hoping it is going to be able to see what we call the ‘end of the dark ages’. After the big bang the Universe was very hot, and it expanded and cooled down, and there comes a point where gas in the Universe is cool enough to condense and form galaxies. We’re hoping this new instrument will be able to see these first galaxies. It is also going to be able to see light from some of the first quasars, which are really bright beacons of light, and they are black holes in the centres of galaxies eating up some of the gas and that produces a lot of light and heat. What is your day-to-day job
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