What is a "Radio Signal From Space"? The Most Authoritative Explanation.
How did astronomers detect a radio signal from deep in space?
Astronomers detected a radio signal from deeper in space than ever before, using a cosmic trick first predicted by Einstein. The Giant Metrewave Radio Telescope, located in Pune, India, received the record-breaking signal. (Image credit: National Centre for Radio Astrophysics)Where did the radio signal come from?
The radio signal, captured by the Giant Metrewave Radio Telescope in India, was in the galaxy known as SDSSJ0826+5630. Researchers at McGill University and the Indian Institute of Science studied the signal and found it was emitted when the universe was 4.9 billion years old.Could a radio signal help answer questions about the early universe?
The signal, which had a specific wavelength called the 21 cm line, is helping answer questions about the early universe, according to a news release from McGill University, published last week. The radio signal, captured by the Giant Metrewave Radio Telescope in India, was in the galaxy known as SDSSJ0826+5630.Does a galaxy emit radio signals?
"AA galaxy emits different kinds of radio signals. Until now, it's only been possible to capture this particular signal from a galaxy nearby, limiting our knowledge to those galaxies closer to Earth," Chakraborty said.
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