Travelling At Speed Of Light

Sunlight takes about 8 minutes, 19 seconds to reach Earth

The Light We Are Seeing From nearest Star Is Of Atleast more Than Four Years Ago.Many Stars Are So Far Away that If Someone Standing On One Star Which is 65 million Light Years Away And Look At Earth ,Then They Would see The Light that Left At The Time of The Dinosaurs Become extinct.
If We See From a Distance Of 4.7 Billion Light Years Could Watch The Solar System Being Forming.And From 13.5 Billion Years We Could Watch the Big Bang!!
Light Year is a measure of Distance in Space its The Distance Traveled By Light In One Year.
ImaginImagine If We Could Travel At Speed Of light !! Then We Can be In Mars In Approximately 3 minutes, 13.25 seconds!!
Here Are The Details Of Time Taken By Light To Reach Earth !
From                                                                      Light Reaches Earth in
Moon                                                                    1.26 seconds
sun                                                                        8 min 17 Seconds
Saturn                                                                   1.43 Hours   
Pluto ,The Farthest Planet                                      5 hours 20 min
Nearest Star                                                          4.22 Years
Distance At Which the sun Would No                    60 Years
Longer Be visible To Naked Eye    
Distant Star In our Galaxy                                     62,700 Years
Distant Visible Star                                               2,309,000 Years
Most Distant Quasar                                            14,000,000,000 Years
FArthest Galaxy Discovered
UDFy-38135539                                                 13.1 Billion Years

Did Jupiter and Saturn play Pinball with poor Uranus ??

A new study conducted by the alessendaro morbidelli and team of the cote d' azur observatory in france found that uranus,one Of the smallest planet in solar system Is been batted back and forth by the huge celestial bodies ,dominated by planet gaints jupiter and saturn.

Study suggests That poor uranus was batted badly by jupiter and Saturn before being shifted to present location. Huge planets played a pinball game with it over a 100,000 years.

Jupiter and saturn moved out of their initial orbits in the early solar system,5 million years ago scattering all small objects ,asteroids whatever comes in their way.
Mean while uranus crossed saturn's path ,which could have been bounced towards jupiter and then back to saturn . This process  repeated for three times until uranus reached its present spot.

In an alternate scenario, Jupiter and Saturn moved to their orbits over 5 million years by simply flinging away space rocks, but this would have visibly scarred the asteroid belt .
"The evolution of the giant planets has been more violent than we thought," Morbidelli says on this occasion. Source:New Scientist Reports.