This essay first appeared in 2003 in NASA's Astrobiology magazine.
But life could have taken 7 billion years to develop, and still have left time to evolve to beings like us, who could ask about the origin of life. If the probability of life developing on a given planet, is very small, why did it happen on Earth, in about one 14th of the time available.
Even on the International Space Station (the ISS), astronauts need to carry out personal hygiene. In such a small space that you have to share with up to 13 people at times, things can become very unpleasant if someone is not taking care of business! Lets start with the hygiene basics.
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Inside the Space Shuttle, there are no wash basins or showers, but the Shuttles do have toilets. The toilet facility is 1 meter by 1 meter large. Both men and women use the same toilet. The toilet looks similar to a western style toilet that we use on Earth. However, there is a slight difference.
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An Adventure in Space. I was part of a crew that was sent on a mission into outer space. The mission was carried out successfully and I was on my way back to earth with my friends. Suddenly, an unidentified flying object appeared and it somehow forced our spacecraft to land on another planet.
The Earth is a relatively small celestial object. It is the third planet orbiting an average star, our Sun, located in the Orion arm, sometimes called the Orion Spur; it is a minor arm located in between the Sagittarius Arm and the Perseus arm of the Milky Way, a barred spiral galaxy. Our solar.