Space Journey

[divyanshu9]

As I know that there is nothing like friction in space, So my Question is why yet the scientists are unable to find a way to travel
very long distance in space, as there is no retarding force in the space to stop an accelerated thing.
I will be grateful, If you can provide me such an information like 1) What are issues that we are unable to cross the moon to deep into the outer space...? THANK YOU..

[deleted-71588]

why yet the scientists are unable to find a way to travel very long distance in space

The premise of your question is in fact FALSE.
Nasa scientists and engineers have sent several unmanned vehicles off into deep space. Sending a probe into far outer space is relatively easy. Being able to receive data back from the probe is a lot harder. Figuring out how to get the probe to return back would be even harder which means we won't be sending out any manned vehicles anytime soon.

[theborg]

divyanshu9,

Craig is correct. We have successfully launched many deep space probes. The real issue is the distance needed to travel and the time it takes to get there. A great example of this are the Voyager 1 and 2 spacecraft. Voyager 1 is the most distant man-made object from Earth. It was launched in 1977 (36 yrs ago) to explore the gas giants in our solar system. It is now around 18.5 billion kilometers from the Sun...that's just over 123 times the distance Earth is from the Sun, and it is still going at a rate of about 538 million kilometers per year! Even with this extream distance and velocity, Voyager 1 is barely beyond the boundary between the Sun and "interstellar space" (known as the heliopause). For more details of these 2 missions and others, visit this site: http://voyager.jpl.nasa.gov/mission/index.html

A more recent mission is Cassini-Huygens which went into orbit around Saturn in 2004 and has been studying the planet and it's rings and many moons ever since. Not to mention the rover missions currently operating from and studying the surface of Mars.