ASTRONOMY:
Pulsars Solve Mystery Of Missing Gas
Govert Schilling
Stellar winds just like the solar wind blowing from our sun should fill the space between the stars in globular star clusters, yet decades of searches have failed to turn up interstellar gas there. Now, meticulous observations using the 64-meter Parkes radio telescope in Australia have revealed that the globular cluster 47 Tucanae harbors about 100 times as much gas as its immediate surroundings.