Labels:bulletin board | reckoner OCR: So farit has been easy to develop theories that are consistent with the available measurements but more critical tests are ir progress ir particular, different theories for galaxy formation predict quite different fluctuations in the cosmic background radiation on angular scales less than about one degree Measurements of such tiny fluctuations have not yet been done but they might be accomplished in the generation of experiments now under way. It will be exciting to learn whether any of the theories of galaxy formation now under consideration survive these tests The present -day universe has provided ample opportunity for the development of life as we know it- there are some 100 billion billion stars similar to the sun in the part of the universe we can observe The big bang cosmo logy impl ...