KOMPAS.com – Humans want to continue to see if there is another life outside the planet. Scientists now have new ideas to steal the attention of our galactic neighbors.
They plan to use the laser technology that we already have as a flare for aliens who may be looking for us or as a veranda of the Planet of the Light.
Scientists at the Massachusetts Institute of Technology (MIT) say the veranda's light can be captured by other extraterrestrial life up to 20,000 light-years.
According to the team, infrared lasers can also be used to send basic messages to space. This gives a different creature a sort of Morse code that tells the planet Earth about the existence of a human being.
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"It will be a difficult project, but it is not impossible," said James Clark, one of the researchers who participated in the study.
"The types of lasers and telescopes that are currently being built can generate detectable signals so other creatures can see our stars and instantly see something special with the spectrum, Science alarmWednesday (November 7, 2018).
The feasibility study suggests using a 1-2 megawatt focused laser through a 30-45 meter telescope.
It will make an infrared radiation beam strong enough to defeat the energy generated by the sun, and therefore it can be strong enough to be captured by the alien eye.
The closest possibility is that the aliens in the Proxima Centauri region (the closest star to the Earth) or TRAPPIST-1 (a star that may live within 40 light years) can capture the transmitted signal.
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But the problem is while there is no proper telescope. In the meantime, the laser must be fired at high altitudes to minimize atmospheric interference or cameras passing through the spacecraft.
"When you start communicating, you can send messages at speeds of just a few hundred bits," Clarke said.
The new study also includes an analysis of whether similar laser beams made in space could be captured by Earth's tools, but some experts say it is not possible because of too many barriers to cover the light.
It is not clear when this plan will be implemented. But if at least humans start to advertise Earth's existence, we already know one way.
"Normally this is a feasibility study," Clark said. "Whether it's a good idea or not, we need more discussion."
This study was published in Journal of Astrophysics.