Far side of the moon's radio telescope will look into the "Dark Ages" of the cosmos.

 A few years from now, the LuSEE-Night pathfinder is expected to deploy.


The far side of the moon, as imaged by NASA's Lunar Reconnaissance Orbiter. (Image credit: NASA/Goddard/Arizona State University)

In a few years, a tiny radio telescope on the far side of the moon might enable researchers to look back in time to the beginning of the cosmos.

 

The Lunar Surface Electromagnetics Experiment-Night (LuSEE-Night) is a moon instrument that is being developed by NASA's Science Mission Directorate, the University of California, Berkeley's Space Science Laboratory, and the Brookhaven and Lawrence Berkeley National Laboratories of the United States Department of Energy.

Currently, LuSEE-flight Night's on a personal robotic lunar lander is planned for late 2025. It will make an effort to collect first-of-their-kind measurements from the "Dark Ages" of the cosmos after touching down on the far side of the moon.

In the early universe, between roughly 400,000 and 400 million years after the Big Bang, before stars and galaxies started to completely form, there was a period known as the Dark Ages. In order to find what researchers are calling the Dark Ages Signal, LuSEE-Night will detect faint radio waves from the Dark Ages from the far side of the moon using onboard antennas, radio receivers, and a spectrometer.

 

"Until now, we have only been able to guess the early universe using a standard identified as the cosmic microwave background. A new standard would be provided by The Dark Ages Signal, "Ane Slosar, a physicist at Brookhaven, said in a statement . Additionally, if forecasts based on each benchmark don't line up, new physics has been found.

LuSEE- Since night is a pathfinder intended to open the way for more ambitious instruments in the future, it is not necessary expected to make such significant advancements on its own. According to team members, the broader project may end up providing answers to important cosmic mysteries like the nature of dark energy and the origin of the universe.

 

Because it offers something Earth cannot: a profound and deep silence, the far side of the moon is a great location to search for the faint signals that could contain such clues. The environment on our world is too noisy for the supersensitive instruments LuSEE-Night will use because of constant radio bombardment. However, the remote location also poses difficulties.

There, surviving requires a technical miracle. The portion of the moon that faces away from us in the night sky, which is occasionally incorrectly referred to as "the dark side," does, in fact, have a day/night cycle, with each period lasting about 14 Earth days. On the far side of the moon, temperatures range from about 250 to negative 280 degrees Fahrenheit (121 and minus 173 degrees Celsius).

Therefore, LuSEE-Night will need to be built to endure two weeks of relentlessly unforgiving lunar-day sun in addition to remaining powered through two weeks of rigidly cold night — and do this repeatedly. Two years is the intended mission duration on the lunar surface

In the same statement, Joel Kearns, deputy associate administrator for exploration in NASA's Science Mission Directorate, said: "LusEE-Night lunar night survival technology demonstration is essential to conducting long-term, high-priority science investigations from the lunar surface.

 Referance. Space.com

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