Fire In Space

In space fires burns a completely different way. On earth fire burns by heated gases rise from the fire which draws oxygen in and pushing combustion products out. In space it burns a completely different way by molecular diffusion by drawing oxygen to the flame and combustion products away from the flame at a rate of 100 times slower than the buoyant flow on earth. Also it burns at a lower temperature and uses less oxygen, which means that the material used to put out space fires need to be more concentrated. Well since March 2009, NASA has been conducting fire experiments in space on the international space station. It has conducted over 200 tests to better understand how the fire behaves in space or microgravity. After all this research and tests conducted NASA still does not understand how fire truly reacts in space. But the great thing that comes out of all this research is that this could potentially improve fire suppression systems on earth and space.

Looking For A Job?

Do you need a job? Dream of becoming an Astronaut? Well heres your big break. NASA is currently hiring astronauts. You can even apply online! this possibly could seem like a joke some might think but this is a completely serious matter. NASA needs astronauts to send into space but wait, theres a catch. NASA doesn't have it's own spaceship anymore since the space program ended in July 2011. What happens now is that NASA will send you up with Russians in their own space shuttle to the International Space Station for six months at a time. But not many trips will americans attend. Each seat an american astronaut aces on a Russian shuttle, America pays Russia $63 million. NASA hopes in about three to five years to build there own commercial rockets to send Americans astronauts to the Space Station. Eventually NASA will send astronauts to Mars and/or an asteroid but these trips are about a decade away. NASA needs about 55 new astronauts. For your resume you will need to have at least a bachelor's degree in engineering, biological science, physical science, physical science or math, must learn Russian, be a U.S citizen, know basic physics, 20/20 vision and be between 5 feet 2 inches and 6 feet 3 inches. The job pays between $64700 and $141700 a year.

Water On Mars

In the ancient past of good old Mars, the fourth planter from the sun, has seem to have had water flowing under the martian surface. Clay deposits found on Mars revealed that surface of Mars had lakes and rivers in certain spots but only for brief periods of time. The reason scientist can prove this is because clay on the planet was shaped by the environment. These certain clays that the scientist are studying from Mars are terrestrial clay which is when water runs across various minerals, weathering and mixing them together as it carries them along. Many of the clay beds show features of dry rivers and lake beds and this indicates that there was running water on the planet. Well since there is no water on Mars currently where did it go??? Scientist have predicted that the atmosphere was thicker in the past and has thinned down since and not able to keep the water on the surface of Mars. Scientist also believe that it could have been trapped in carbonate rocks or ice. Another theory is that the water turned into clay by the intense weathering of volcanic-fored basaltic rock. But in conclusion, there was water on Mars but very very long ago.