Space and the Universe
Can we travel at the speed of light ?
No, we cannot travel at the speed of light.
If an object travels at the speed of light, its mass will increase exponentially ! The speed of light is 186,282 miles per second and when an object moves at or close to this speed, its mass will become infinite. Therefore, infinite energy will be required to move the object, which is an impossibility. That is the reason why no object can move at the speed or faster than the speed of light.
Excepting the Sun our nearest star is Proxima Centauri at 4.22 light years away from us. This isn't a single star, it's actually a triple-star system — three stars bound together by gravity. Alpha Centauri A and B are two bright, closely orbiting stars with a distant, dim companion named Proxima Centauri. .That is almost 78,000 years travelling at a speed of the Voyager space probe of around 37,000 mph . Other stars are tens, hundreds, thousands, millions or even billions of light years from us.
Mars is currently NASA's dream child of a manned visit. Mars is 34.8 million miles from Earth at its closest orbit. At a speed of the Voyager space probe of around 37,000 mph, it would take 128 - 330 days to get there dependent on circumstances and the same to get back. The whole prospect of serious space travel is a theoretical pipe dream.
Because of the mega-distances involved between planets, stars and galaxies, unless in the distant future an astrophysics means of bending space/time is found ( another pipe dream ), space travel is nothing more than an interesting but impossible dream.
By the same principles, it completely rules out the slightest possibility of any Alien visitors ever visiting Earth.
Our knowledge is curtailed entirely to what we can see and reach - there it stops dead at infinity.
No, we cannot travel at the speed of light.
If an object travels at the speed of light, its mass will increase exponentially ! The speed of light is 186,282 miles per second and when an object moves at or close to this speed, its mass will become infinite. Therefore, infinite energy will be required to move the object, which is an impossibility. That is the reason why no object can move at the speed or faster than the speed of light.
Excepting the Sun our nearest star is Proxima Centauri at 4.22 light years away from us. This isn't a single star, it's actually a triple-star system — three stars bound together by gravity. Alpha Centauri A and B are two bright, closely orbiting stars with a distant, dim companion named Proxima Centauri. .That is almost 78,000 years travelling at a speed of the Voyager space probe of around 37,000 mph . Other stars are tens, hundreds, thousands, millions or even billions of light years from us.
Mars is currently NASA's dream child of a manned visit. Mars is 34.8 million miles from Earth at its closest orbit. At a speed of the Voyager space probe of around 37,000 mph, it would take 128 - 330 days to get there dependent on circumstances and the same to get back. The whole prospect of serious space travel is a theoretical pipe dream.
Because of the mega-distances involved between planets, stars and galaxies, unless in the distant future an astrophysics means of bending space/time is found ( another pipe dream ), space travel is nothing more than an interesting but impossible dream.
By the same principles, it completely rules out the slightest possibility of any Alien visitors ever visiting Earth.
Our knowledge is curtailed entirely to what we can see and reach - there it stops dead at infinity.
