Multiple choice

What is UDFy-38135539, which is in news in the month of Oct, 2010?

  1. The New Planet

  2. The Galaxy

  3. The Moon of Mars

  4. A comet
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

SUDFy-38135539 (also known as HUDF.YD3) is the Hubble Ultra Deep Field (UDF) identifier for a galaxy which has been calculated (as of October 2010) to have a light travel time of 13 billion years with a present comoving distance of around 30 billion light-years.

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