Life is a matter of perspective. Since the earliest days of the human species, space has always existed as an enigma. In modernity it is still an enigma, but only less. Instead of stars and the endless void around them serving as a curious backdrop to our evening affairs, we have a pretty decent understanding of what’s going on in space. However, in a few centuries, if our species gets that far, our knowledge of the universe will seem as meager as that of our ancestors.
Whether we like it or not, we are in the transitional era of human space exploration. We have the means to obtain amazing data about the cosmos, but none of us are likely to witness the vast wonders we are discovering. According to The economic perioda radio signal from 9 billion light-years away has been picked up for the first time in human history.
For the first time, a radio signal sent from a galaxy nearly 9 billion light-years from Earth has been captured, media reported on Friday.
The particularity of this signal is that it has a single wavelength, known as the “21 centimeter line” or “hydrogen line”. It would be emitted by neutral hydrogen atoms.
The signal was picked up by the Giant Meterwave radio telescope in India. This means scientists can begin to probe the formation of some of the oldest stars and galaxies, the report says.
The signal was emitted by a “star-forming galaxy”, labeled SDSSJ0826+5630. It was emitted when the 13.8 billion-year-old Milky Way, where Earth is located, was just 4.9 billion years old, he said quoting the researchers.