Hubble Space Telescope Reflects the Cosmos

This four-minute video overviews the 25-year history of the Hubble Space Telescope, and also shows some of its spectacular images.

This next video is 52 minutes long, and gives more history and shows more spectacular images.  It also answers the question, how old is the universe?  Answer: 13.7 billion years.  It answers another question: Are there more stars in the universe or more grains of sand on the earth? Answer: There are more stars in the universe. Then it raises a question that has not been answered: Why is the universe expanding at an ever faster rate?

https://www.youtube.com/watch?v=VIFxzwEHG3o