"By harnessing laser-driven propulsion, scientists aim to send spacecraft to distant star systems faster than ever before. New advancements in materials and measurement techniques are bringing this once-fantastical concept closer to reality. Credit: Breakthrough Starshot" (ScitechDaily, From Sci-Fi to Reality: Laser-Powered Sails Are Changing the Future of Space Travel)
There, they shoot laser beams at spacecraft when they travel past them. Those lasers can use solar power. But in longer distances, they can use nuclear power in so-called YAG technology, where acetylene light there, acetylene burns in pure oxygen and gives light to the laser elements like flash tubes. That means the high-power lasers don't need nuclear reactors.
That is one variant of the Medusa drive. The solar sail that the nuclear bombs accelerate. In some variants, the nuclear bombs will be sent to certain points in the solar system. When sail travels past them, those hydrogen bombs will detonate.
The laser system can also connected to the spacecraft itself. The high-power wireless electricity transportation can solve the power-source problem.
Then, the solar sail is put to the front of the craft. A laser system can push that craft ahead by sending the laser beams to the sail. The laser gives a very weak thrust if it is aimed backward. But if the laser shoots forward to the sail, that is ahead of the craft. That kind of system can be a new tool for space research.
The solar sail can also operate as a radar system in that kind of spacecraft. The lasers are connected with solar-sail technology, which makes them quite fast. And they can travel to the Kuiper Belt. Maybe some of those systems find the planet X.
The searchers can use things. Like ultra-accurate atom clocks to measure the changes in time dilation. Those systems can uncover the gravity effect. But those systems must get to the Kuiper Belt.
In some models, the land-based laser systems can also raise solar sail out from the atmosphere. The idea is that the solar sail can be connected to the parachute-shaped wing. And the laser systems can push those things out of the atmosphere. This technology is not new. In some models, the parachute or the hot air balloon hangs the spacecraft. In some versions, the laser can create the plasma in the asbestos bag that makes the system look like a hot air balloon. The laser system can be in the rocket.
The problem is that those systems must be very big. They must share the heat energy to a large area so that the laser will not burn a hole in the system. Another way is to use some liquid gas that keeps the temperature low in the balloon or parachute. That lasers push upwards.
The hot-air balloon or even hydrogen balloon can raise the spacecraft like a small shuttle over the atmosphere. The hot-air balloon can fly out from the atmosphere if the system has an internal oxygenizer. That means the system can operate like a rocket engine that operates oppositely than normally. The system can basically be the acetylene-oxygen welding system that pushes the asbestos balloon upwards. The hot exhaust gas can push the balloon forward.
The hydrogen balloon can use mylar, and it's like an Echo satellite, which was also a balloon. The pressure decompression ventilation can remove pressure, and that makes the balloon useful.
The test with laser-powered spacecraft or laser-powered spacecraft models began before 2010. In those systems, lasers make a plasma that raises the craft to high altitudes. In some versions, the lasers are put in the spacecraft, and they are aimed at the carbon fiber stick that makes plasma in the chamber. The system can offer very cheap and silent propulsion to spacecraft.
https://scitechdaily.com/from-sci-fi-to-reality-laser-powered-sails-are-changing-the-future-of-space-travel/
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