The light travels at the speed of 1 light year. Therefore, if we assume light to be travelling, then it will travel 500 light years in 500 years.
SInce light-year is the distance travelled by the light in one year while travelling with the speed of light i.e. 3×108m/s 3 × 10 8 m / s . It would take 500 years to travel 500 light-year distance at the speed of light.
Since light travels at about 186,300 miles per second, with 86,400 seconds per day and about 365 days per year, that works out at about: 186300×86400×365≈5,875,000,000,000 miles.
It would take a spacecraft approximately 10,000 years to travel one light year. This is because the speed of light is roughly 300,000 kilometers per second and it takes about 9.5 trillion kilometers to make up one light year. So if you were traveling at the speed of light it would still take you 10,000 years!
Since one light year is the equivalent nearly six trillion miles, it would take 22 million years to travel 600 light years on a space shuttle and visit Kepler 22-b with our current technology.
Even if we hopped aboard the space shuttle discovery, which can travel 5 miles a second, it would take us about 37,200 years to go one light-year.
Even traveling at the speed of light, it would take nearly a hundred thousand years!
To do so, you will need a speed of almost the speed of light, so in the reference frame of Earth, you will have spent just a tad more that 1000 yr to travel 1000 ly. i.e. 1000 years, 4 hours, and 23 minutes in Earth's reference frame.
Therefore there are 2939312686591800000000 miles in 500 million light years. If we can write in another way the answer will be, There is 2939×1021 a mile in 500 million light years.
Since there is virtually nothing in space to scatter or re-radiate the light to our eye, we see no part of the light and the sky appears to be black.
Re: How would you age at the speed of light
The simple answer is, anything moving through space at c, equal to the speed of light in a vacuum, experiences zero time flow. If you were to travel at the speed of light, you would experience no time.
Proxima Centauri is 4.2 light-years from Earth, a distance that would take about 6,300 years to travel using current technology. Such a trip would take many generations.
A light year is the distance light travels in one year (365 days). It often gets misused as a unit of time, likely because 'year' is right there in the name. It will always take light 1 year to travel a distance of 1 light year.
Based on our current understanding of physics and the limits of the natural world, the answer, sadly, is no.
The light that travels the longest gets stretched by the greatest amount, and the object that emitted that light is now at a greater distance because the universe is expanding. We can see objects up to 46.1 billion light-years away precisely because of the expanding universe.
Light from a stationary source travels at 300,000 km/sec (186,000 miles/sec).
Galaxies may exist at that distance, but their light would be too faint for our telescopes to see. C. Because looking 15 billion light-years away means looking to a time before the universe existed.
It's because the space between any two points — like us and the object we're observing — expands with time. The farthest object we've ever seen has had its light travel towards us for 13.4 billion years; we're seeing it as it was just 407 million years after the Big Bang, or 3% of the Universe's present age.
Our galaxy probably contains 100 to 400 billion stars, and is about 100,000 light-years across.
In a vacuum, light travels at 670,616,629 mph (1,079,252,849 km/h). To find the distance of a light-year, you multiply this speed by the number of hours in a year (8,766). The result: One light-year equals 5,878,625,370,000 miles (9.5 trillion km).
Located just under 1,600 light-years away, the discovery suggests there might be a sizable population of dormant black holes in binary systems. The black hole Gaia BH1, seen in this artist's concept near its Sun-like companion star, is the closest black hole to Earth discovered so far.
We can see light from 13.8 billion years ago, although it is not star light – there were no stars then. The furthest light we can see is the cosmic microwave background (CMB), which is the light left over from the Big Bang, forming at just 380,000 years after our cosmic birth.
The technology required to travel between galaxies is far beyond humanity's present capabilities, and currently only the subject of speculation, hypothesis, and science fiction. However, theoretically speaking, there is nothing to conclusively indicate that intergalactic travel is impossible.
The galaxies will pass through each other, merge into one gigantic galaxy and all star clouds will flash into a star formation. But there are also some issues, for instance, hot large blue stars, a blasting gas, a quasar, radiation. Secondly, there are a chance that the Milkomeda will become a super spiral galaxy.
Andromeda–Milky Way collision
The merger will totally alter the night sky over Earth but will likely leave the solar system unharmed, according to NASA.