1.   By detecting and following their radio emissions astronomers can reconstruct the evolution of galaxies and decipher many celestial mysteries.

2.   Familiar in causing the rising and falling tones of train whistles as they approach and recede, the phenomenon has a similar effect on radio emissions from satellites.

3.   Foremost of these is the absence of strong radio emissions from the mystery object.

4.   Masers are bright beacons of radio emissions, amplified as they pass through clouds of water vapor.

5.   Most such projects collect and analyze radio emissions from the heavens for patterns or other signs that may indicate an alien origin.

6.   News reports suggesting that their microwave radio emissions may be harmful are raising the issue anew among consumers.

7.   One of the puzzles astronomers are probing is the mysterious increase in radio emissions from Jupiter while it was being hit by comet fragments.

8.   Research teams using the array will look for radio emissions produced by the slight warmth of cometary material.

9.   The array would enable researchers to scan many more star systems for radio emissions that could be a sign of an alien civilization.

10.   The existence of such powerful, stormy radio emissions in a celestial object of this kind, called a brown dwarf, is highly unexpected.