1.   Most astronomers presumed, correctly, that most radio noise was generated by hot clouds of gas floating in interstellar space, but they also detected puzzling bright spots.

2.   Radio noise might eventually hurt the study of giant clouds of dust and gas in space.

3.   And the signal would be faint and mixed with radio noise from satellites and stars.

4.   It automatically will download a small segment of radio noise from the SETI web site, then search through the data for interesting radio signals.