Time to take leave but the radio astronomer doesn't know how to.

For nearly a decade he was the world's only radio astronomer.

Discovered by the radio astronomers even before I was born.

But most of the problems radio astronomers experience come from satellites.

There are at most a few hundred really capable radio astronomers in the world.

The radio astronomers plan to examine at least 100 other candidate stars.

For the next two days the radio astronomers were hard at work on the aerials.

She was one of the first radio astronomers and the first woman in the field.

He started off his career as a radio astronomer.

A klatch of radio astronomers was just leaving for dinner.