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NASA news: Mars astronauts will use LASERS to communicate with Earth

NASA has begun working on a telescope in the Californian desert which will be used to communicate with astronauts on Mars using lasers.

NASA hopes to get humans to Mars at some point in the 2030s, and has already begun its preparations. Construction has now started on a 112-foot dish (34-meter-wide), which workers are building in Goldstone, California, which will eventually form part of an array of telescopes.

NASA has classically relied on radio waves to communicate with its machines throughout the solar system, but these waves take an average of 13 minutes to travel what can be up to 271 million mile journey to the Red Planet – depending on where Earth and Mars are in their respective orbits.

This could prove to be too long if hypothetically astronauts on Mars are in the midst of an emergency.

Lasers however provide almost instantaneous communication, and also allow for much larger data sets to be transferred.

The project is part of NASA’s Deep Space Network (DSN) and the space agency described the satellite, called DSS-23, as “critical” for future Mars missions.

NASA news: Mars astronauts will use LASERS to communicate with Earth (Image: GETTY)Lasers will make communication almost instant (Image: GETTY)

NASA said: “While DSS-23 will function as a radio antenna, it will also be equipped with mirrors and a special receiver for lasers beamed from distant spacecraft.

“This technology is critical for sending astronauts to places like Mars.

“Humans there will need to communicate with Earth more than NASA’s robotic explorers do, and a Mars base, with its life support systems and equipment, would buzz with data that needs to be monitored.”

Larry James, deputy director of NASA’s Jet Propulsion Laboratory in Pasadena, California, said: “The DSN is Earth’s one phone line to our two Voyager spacecraft — both in interstellar space — all our Mars missions, and the New Horizons spacecraft that is now far past Pluto.

How the telescope will look (Image: NASA)

“The more we explore, the more antennas we need to talk to all our missions.”

Suzanne Dodd, director of the Interplanetary Network, the organisation which manages the DSN, said: “Lasers can increase your data rate from Mars by about 10 times what you get from radio.

“Our hope is that providing a platform for optical communications will encourage other space explorers to experiment with lasers on future missions.”

However, before the space agency can get to Mars, it has to first get back to the Moon.

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NASA's annual budget (Image: EXPRESS)

NASA has decided it has unfinished business on our lunar satellite and wants to set up a permanent base on the Moon, with the missions hopefully taking place in 2024.

NASA administrator Jim Bridenstine made the announcement saying he wants to set up a lunar colony and called on “the best and brightest of American industry to help design and develop “human lunar landers”.

The base would be used as a checkpoint between Earth and Mars while also allowing astronauts to study the Moon in close detail.

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