# How Far Can A Laser Travel In Space

## How far a laser can travel?

In total darkness we can see a

## Can a laser reach the Moon?

The typical red laser pointer is about 5 milliwatts, and a good one has a tight enough beam to actually hit the Moon—though it’d be spread out over a large fraction of the surface when it got there. The atmosphere would distort the beam a bit, and absorb some of it, but most of the light would make it.

## How far can the longest laser go?

Researchers have demonstrated the longest laser ever built, using an optical fiber that could stretch from Washington, DC, to Baltimore. In the 20 January PRL, a team shows that their 75-kilometer laser can transmit light signals with hardly any loss of power over that distance.

## Can a laser go on forever?

The light from a laser in space would continue on forever unless it hit something. However, if you were far enough away, you wouldn’t be able to detect the light. A projectile would also continue on forever unless it hit something. Lasers produce light that can be tightly focused.

## How far can a 10000 MW laser go?

Just gently press the switch button; you will notice a beam of strong green light sending out from the laser pen. With such a portable tool, you can point at any target as far as 5000 meters.

## Can a laser destroy a mirror?

Ryan Hoffman, Counter-Directed Energy program manager, says that mirrors protect well against low-power lasers. “However, reflective surfaces are not 100 percent reflective,” he says. “The small amount of laser energy that’s absorbed will heat the mirror and cause damage.”

## Are lasers faster than light?

One of the most sacred laws of physics is that nothing can travel faster than the speed of light in vacuum. But this speed limit has been smashed in a recent experiment in which a laser pulse travels at more than 300 times the speed of light (L J Wang et al. 2000 Nature 406 277).

## How far can a blue laser go?

Green at 532 nm vs. Here is a comparison of two 1 watt handheld lasers. One is green at 532 nm (88% apparent brightness) and the other is blue at 445 nm (3% apparent brightness). The green has a visual hazard distance of 25.5 NM, while the exact same laser in blue has a visual hazard distance of only 4.8 NM.

## How far can a green laser go?

This green laser pointer has a reported range of 80 km (50 miles.) The laser is easily visible in the day time too, well over 30 meters (100 feet,) — and likely even more — even in bright daylight, I discovered (see image at the bottom.) SKYlaser laser pointers are about the size of a Sharpie pen.

## What is the strongest laser?

ELI NP hosts the most powerful laser in the world with a power of 10 PW. The ELI project itself was initiated by Nobel Laureate Gérard Mourou and funded by the host nations as well as the European Regional Development Fund.