I read a book about how Earth's rotation is slowing, how the moon was formed, the possibility of alien life, and other cool things. The book is titled The Universe At Home in the Cosmos by Neil DeGrasse Tyson, Charles Liu, and Robert Irion. I learned a lot of new things. The authors wrote this book because they wanted to connect us to the universe.
For example, Earth is slowed down by the moon's gravity. Every million years, a day becomes 16 seconds longer. Four hundred million years ago a day was only 22 hours long.
The moon was created about 4.5 billion years ago. A mars sized asteroid hit the embryonic Earth. The very hot ejecta that came out in the crash started orbiting Earth. This then cooled and was pulled together by gravity to form the moon. Click here to learn more about the creation of the moon.
Scientists believe that Jupiter's moon Europa could have life. Jupiter heats Europa so that there can be a ocean below the ice. Life could be possible in Europa's ocean because Biologists believe that life on Earth began in the sea.
Showing posts with label planets. Show all posts
Showing posts with label planets. Show all posts
Sunday, February 24, 2013
Space
Labels:
alien life,
asteroids,
Astronomy,
exploration,
gravity,
Physics,
planets,
space,
The Universe
Wednesday, February 13, 2013
PLanet Hunter!!!

Has the thought, could humans ever live on other planets, come to your mind before? My book "Planet Hunters", takes you through a world of how other planets are discovered, outside of our solar system, and how us humans might have the ability to live on them. This book is fascinating because, it makes you think even more about all the questions that outer space has provided or given to you. This book also helps you understand that there is more out there in the universe, as you discover new small and massive sized planets and different size stars, with Geoff Marcy. This book shows you pictures, and gives you very descriptive subheadings that allows you to fully understand the picture that you are looking at. Marcy explores planets such as 47 Ursae Majoris b (orange planet seen on left of picture), and uncovers new moons that highly resemble Earth. His dream, and purpose for having this book, was to show his research, and to show the world his dream of how humans, later on in the future, can possibly have two homes to live on. I highly recommend that anybody who is into space and wants to know more on the very things that consist outside of our universe, that this is the book for you!
If you want to learn more click on Marcy! You can also click on Planet Hunters.

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