... into a new century, Mars might become the next planet Earth. The variability of the Mars atmosphere in terms of temperatures, dust content, clouds, water vapor, and even total atmospheric pressure, is at the extreme. "On gaseous planets lightning has been detected by the Pioneer and Voyager spacecrafts", which ... to have fallen as low as 20 billion. If a mission is deployed, it would last two and a half years. The air and water will be recycled and the astronauts will utilize liquid oxygen and methane made on the surface to fuel their vehicle. The astronauts, while on the ... The key ...

• Word Count: 1265
• Approx Pages: 5
• Grade Level: High School

... without contaminating such an untouched specimen as it may be. "Since the 1996 discovery of a liquid lake, sealed for millions of years beneath two miles of solid ice scientists have speculated about the novel life forms existing within. Located in the Antarctic, Lake Vostok is a pristine ... in depth with that of Lake Tahoe (Morton, 2000). Scientist Chris McKay, a planetary scientist with NASA, suggests that "Microbes within the liquid water habitat of Lake Vostok may shed light on the viability of life in similar harsh environments beyond Earth, such as in the frozen ocean subsurface ...

• Word Count: 2395
• Approx Pages: 10
• Has Bibliography