Stephen Hawkings Questioning the Universe Video, Life on Earth - Essay Example

Life on Earth Article Every cell has a molecular contraption that is complex to understand. It is not easy to imagine how enzymes were created as life begun. However, Amino acids can be formed easily from simple chemical combinations. It is therefore not easy to explain how life begins. It involves the understanding of proteins and information in the DNA. The biggest paradox is that there is need for proteins to exist for life to begin. Experiment shows that some proteins similar to RNA or DNA may have come to existence spontaneously and reproduced.

Life began from simple molecules and through mutations and copying, more complex proteins were created. Experiments show that simple fatty protein membranes may have been the source of early life. Copying and evolution of proteins may have led to the coming up with more complex proteins that exists today. Stephen Hawking Questions the Universe Video Stephen Hawkins raises questions in the video regarding the origin of human beings. The questions of how humanity and the universe came into being are raised in the video.

The future of human race and whether alien life exists is also raised. It was thought that the universe was static until 1920 when it was realized that the universe was going through expansion. Stephen Hawkins questions whether there was anything before the big bang. The universe may have a risen in two different states. There may be other life’s elsewhere if life arose in earth spontaneously. It will be difficult for human race to have a future if greed persists in the light of shrinking resources.

Avoiding disaster will be hard in the coming 100 years. The problem will even be compounded in a thousand or a million years. Works cited Ricardo, A. and Szostac, J Life on Earth, 2009 https://drive.google.com/file/d/0Bwqz50tAwubRZU5aRDZrS3FjZDQ/edit Stephen Hawking: Questioning the Universe Video http://www.ted.com/talks/stephen_hawking_asks_big_questions_about_the_universe?languagen