The next mission was titled Galileo Millennium Mission which lasted till 2001. Europa and Io are the two main focuses of this mission but there were also studies done on the effect Jupiter’s radiation was having on the spacecraft. Unfortunately, Galileo began to run out of the fuel it needed to fine-tune its orbit and continue to have its antenna pointed the correct way to earth. Rather than taking the risk of losing control of the space craft and having it crash into the moon Europa, contaminating it, they decided to have it crash into Jupiter’s atmosphere in September of 2003.
A rock that size would cause serious damage across a widespread area and absolute destruction at the local level. Sancho would arrive first and orbit the asteroid for several months. It would deploy some penetrating probes to form a seismic network on the asteroid to examine its structure before and after its sister craft's smashing arrival. Hidalgo would crash into the asteroid at about 22,370 mph (10 kilometers per second). Sancho would observe from a safe distance, then move in for a closer look.
Astronomers didn't detect 2002 EM7 until four days after it came within 288,000 miles (460,000 kilometers) of Earth, which they regarded as a close encounter. [The moon is about 239,000 miles, or 385,000 kilometers, from the Earth.] The asteroid was about 200 feet (60 meters) in diameter—big enough to fill two-thirds of a football field—and could have flattened a city, unleashing the energy of a five-megaton nuclear bomb. "I think Mother Nature has given us yet another wake-up call," says Donald K.
Voyager 1 was launched on a faster trajectory and overtook Voyager 2 while the craft were passing through the asteroid field between Mars and Jupiter. In early March 1979, Voyager 1 reached the Jupiter and began taking scans and pictures of the Jovian system. Voyager 2 reached Jupiter four months later and began similar scientific investigations. Saturn was reached by Voyager 1 on November 12, 1980 and by Voyager 2 on August 25, 1981. After making exhaustive studies of Saturn, it's rings, and it's moons, Voyager began its long trip out of the solar system and into the void of interstellar space.
The Earth's moon has a great deal of mystery and indefinite discoveries left for us to explore. One of the most talked about topics of the Moon is if we are going to be living there in just a few short decades or centuries. Just imagine yourself, for example, weighing 150 pounds on Earth. If you were to live on the Moon, you would feel like you only weigh 26 pounds. That is because the Moon's gravity is only 17% of Earth's gravity.
Everything changed on August 7, 1996, when NASA and President Clinton told the world that a very primitive life form had been found in a meteorite, from 1984. President Clinton had this to say about the matter: “This is a product of years of exploration and months of intensive study by the world’s most distinguished scientists. Like all discoveries, this one will and should continue to be reviewed, examined and scrutinized. '; After Clinton said this it was almost as if a scientific boom had occurred. NASA research teams of scientists at Johnson Space Center began to look for life as well.
On board, Four and half tons of fuel, and a spider-shaped spaceship covered with gold and silver foil. The goal of Apollo 11 was stated very simply. Perform manned lunar landing and return mission safely. Simply stated, but almost impossible to achieve, it was the mission NASA had been preparing for almost a decade, and nobody was trying to pretend this was just another launch. It would take this rocket ship almost three days to reach the shores of their new world.
Russian cosmonaut, Valery V. Polyakoz, clocking in at four-hundred and thirty-eight days for just one stay in Earth orbit, shows humanity is capable of a twelve month round trip to Mars (Schwirtz, 2009). Earth's orbit has provided some benefits to space exploration, like the magnetic field from cosmic radiation, and the proximity to Earth if an emergency were to arise (Jones, 2009). The further humans travel away from Earth the greater the risks become. The major risks to human health on a flight to Mars, living on Mars, and returning to Earth are: radiation exposure, biological problems induced by weightlessness, spacecraft malfunctions, and psychological problems brought on by isolation. One of the biggest issues raised on sending humans to Mars, is the amount of radiation they would be exposed to by traveling through space.
com terraforming is defined as transforming another planet into one having the same characteristics of landscape as earth. The terraforming process could take anywhere from 100 years to 20,000 thousand years to complete entirely, due to the tedious process of making Mars suitable for human life. I believe that it will take nearly 1,000 years to complete entirely my process of terraforming mars. What makes it so difficult to get to Mars is one the launch window time, which mean when Earth and Mars are nearest to each other. The time that we know of so far for the next launch windows is 2013 November -2014 January,2016 January- April , and 2018 April -May,2020 July - September according to wikipedia.
The Impact of an Asteroid on Earth Asteroids sling through space, celestial debris of diverse origins, leftovers from the formation of the solar system, broken offshoots of parental asteroids or comets that have lost their glow. But if an asteroid were to smash into Earth, the result would mean a global catastrophe and life on our Planet could come to an end. The explosion would approach that of a million megatons of TNT- sixteen hundred times greater than the most powerful nuclear weapon ever tested (Barnes-Svarney 234). "Asteroid" is Greek for "starlike". They were given this name because early telescopes could see them only as points of light.