Before astronomers determined that psr b1620-26 b was a planet, they went back and forth over its identity and thought that it could possibly be an object between the size of a planet and a small star. what did astronomers initially think that psr b1620-26 b was?
a. a brown dwarf
b. a global cluster
c. a moon
d. a star burst

none, its a machine

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.