Astronomy View

We all know , we live in the earth which is a part of solar system and in turn which is a part or constitutes the milky way galaxy, so we can say that we live on a earth or milky way galaxy. In this universe there are about billions of galaxies and more.  And every galaxy probably consists it's solar system, and also we know that our  sun is the smallest star on this universe, so it is sure that the sun on the other galaxies would be much larger than our sun and this also implies that there earth must be much bigger than our earth. So we can simply calculate that if there are billions of galaxies present on this universe than there must be billions of earth present ,as each Galaxy has a solar system and each solar system has one earth. But why life is not present on other earth or do life exists there? Our satellites has not reached so far that they could study even beyond their galaxy accurately but  we can predict that life may not be present on o...

Without talking about here and there, I will come straight to the topic.  The possibility of existence of life on mars is a topic of significant interest. Mars is of particular interest for the origin of life as it has similarly  to the early earth. This is so because the mars has the cold climate and thus it has remain unchanged since a long time of about billion years. Atleast 2/3rd of the mars surface is 3.5 billion years old.

Introduction Kalpana Chawla was an American astronaut, engineer, and the first woman of Indian descent to go to space. She first flew on Space Shuttle Columbia in 1997 as a mission specialist and primary robotic arm operator. She was very brilliant in his works, she also won the various medals in field of astronomy and robotics. Cause of her death US space shuttle Columbia disintegrated shortly before landing on Saturday morning, killing the seven crew members on board, including Indian-American Kalpana Chawla. Witnesses in and near Waco and Dallas, Texas, reported seeing the space shuttle breaking up around 8 am local time, about 16 minutes before its scheduled landing at Cape Caneveral, Florida. Local cameramen captured several vapour trails in a clear blue sky as the shuttle broke up. Columbia was returning to earth after a 16-day mission and was commanded by Texan Rick Husband, who was on his second mission. It was also the second mission for Karnal, Haryana-bor...