Thursday, December 17, 2009

Life on the Crab Nebula?!?!?! (...and maybe MARS???)


The Crab Nebula cannot support life. I mean, maybe it has some kind of alien life-forms that were made out of different elements through different conditions, but it can't support human-like life-forms. For one thing, there isn't any water in the Crab Nebula, so there are definitely no human-like life-forms. There also isn't an oxygen atmosphere, which human-like life-forms need to breathe. I personally think that there might be life of some kind in the Crab Nebula, but no human-like life.





Although I don't think that life could survive on the Crab Nebula, I do believe that life might be able to survive on Mars! Mars is located in our Solar System as the fourth planet from the Sun. It's 35 million miles away from Earth. Some scientists think that there used to be life on Mars. They have scientific evidence that there used to be water on Mars, but something happened to make all the water disappear. I believe that, with time and the technology we have, maybe Mars is a suitable planet to live on if an apocalypse comes, or if we need another planet to destroy.

Monday, December 14, 2009

Distance



= 6300 light years from






Space is measured in many different ways. It can be measured in simple units like kilometers. Or it could be measured in Astronomical Units (AUs), which are equal to the distance of the Earth from the Sun. Or you could measure in light years, which is the measure of how long it takes light from our Sun to reach a distance in space. Kilometers would be the smallest unit of measurement in space, then AUs, and finally light years.

The Crab Nebula is 6300 light years away from the Earth (this is equal to 5.956e+16 kilometers, or 398,409,931.70999978 AUs). If we were traveling at the speed of light, it'd take us 6,300 years to get to the Crab Nebula. But, since the speed of light is WAY faster than the speed of a normal human, it would take 299,792,457.605027794 years. A little bit longer than 6,300 years, don't you think? I think that, some day, maybe humans will travel to the Crab Nebula, but only if they go all Wall-E on the earth and take everyone on a GIANT ship and take them all to the Crab Nebula at the speed of light.