Moon still revealing secrets of the Universe

Just recently a number of eminent astronomers who were headed by Dr. Benjamin McKinley who works at the international center for radio astronomy at the Curtain University said that observations of the movements of the moon reveal that it could help the scientists find about the faint remains of Hydrogen atoms present in the infant universe.

This is a very good development as it could reveal us the past of the universe which is still quite questionable. Murchison Widefield Array telescope has helped them receive the radio signals that are emitted by the hydrogen atoms present in the space.

The findings of the astronomers are that pretty much before the advent of the moons and the stars, the universe mainly comprised of hydrogen. These times are termed as the cosmic dark ages in which there was no source of light as such.

Moon Galaxy Milky Way

NASA/GSFC/Arizona State University

These hydrogen atoms have existed since the beginning, and through the Murchison Widefield Array telescope, they have been able to catch the radio signals from the hydrogen atoms. The radio signals that are obtained can be changed into images. However, the radio signals that are being received are very weak and thus, they yield very dark images of the universe. This problem is overcome by properly measuring the normal brightness of the sky.

This allowed them to find the brightness of the Milky Way through the occulting moon. Also, the astronomers have used the earth shine radio waves as well for better imaging. However, these signals defiled the signals and their examination was overshadowed. So, they had to eliminate these eventually. The scientists are planning to reveal a hydrogen model of the signal and prepare the initial models of the universe at the time of the beginning. This would help them better understand the beginning of the world.


More information: B McKinley et al. Measuring the global 21-cm signal with the MWA-I: improved measurements of the Galactic synchrotron background using lunar occultation, Monthly Notices of the Royal Astronomical Society (2018). DOI: 10.1093/mnras/sty2437