A meteor is a kind of meteoroid commonly known as a particle broken off an asteroid or comet orbiting the Sun, this particle while entering the Earth’s atmosphere creating the effect of a “shooting star” as it burns in nature. Meteoroids when entering the earth without disintegrating the Earth’s surface are called Meteorites. In 2008, Lena Okajima who left her job from a financial company to recreate artificial meteors that was placed in orbits through satellites which is capable of launching an artificial form of meteor showers that makes one sitting back in wonder as super-bright artificial meteors flash across the sky, that will create a chance of thanking the credit crunch.
Astro Live Experiences
Astro Live Experience (ALE), the company of Lena Okajima is on track to launch its first satellite and begin experiments in space for the first time. Based on the success of the experiment they could shower at special events that cover thousands of people. She decided to load each satellite with 400 pellets, each one with 2cm (less than an inch) in diameter. The shower could be of 3 to 10 seconds long.
Lena’s colleague Adrien Lemal, an aero thermodynamic engineer, explains that the pellets to be released should be fired out of the satellite with great accuracy and at high speed. If not they may fail to re-enter the Earth’s atmosphere as planned. The way of designing artificial meteors differ from natural ones if it is added with colours to show it more attractive. In the lab, the material can be heated which results in emitting plasma – hot ionised gas and produce lights at different wavelength. It includes various colours like blue, green and orange. Red being less vibrant at the spectrum it was trickier to obtain. The satellite was launched by the JAXA, the Japanese Space Agency once the experiment was successful. ALE says its meteor shows are going to be visible inside a vicinity of 200sq kilometre and apparently has simulations that counsel it can do the required accuracy.
In the 1980s, the Active Magnetosphere Particle Tracer human (AMPTE) mission wanted to recreate comets by emotional vapours into the magnetosphere. The effect was not principally entertainment as it was seen through a small telescope. The scientists of AMPTE wondered about how did the charged particles flung across space by the Sun, known as solar wind, interact with Earth’s atmosphere.
A satellite with canisters of lithium or barium vapor was loaded, when these canisters were exploded, the vapor would fly into the solar wind and become ionized (charged) by it. As a result of this, a visible effect- having the appearance of a comet with head and tail was generated. The instruments measured the energy signature of the ions as they passed through Earth’s atmosphere.
Yet debris left behind by pellets that fail to burn up would likely not threaten most satellites, or the ISS. In the future, these may trouble the satellites that occupy this region of the space. If any leftover particles of artificial meteor could be a problem in future satellite launching.