Today's astronomers agree that our sister planet has no moons.

Even so, most astronomers would agree, it is an accident waiting to happen.

Six astronomers agree to take a trip to the moon.

Within a few decades, however, most astronomers agreed that Mars lacks large bodies of surface water.

For their part, the astronomers agree to avoid scheduling observations during peak cellular phone use.

However, most astronomers agree that the analysis suffers from poor methodology and small number statistics.

Nearly all astronomers agree that no definitive answer has yet been reached.

A cloud for which the astronomers could not agree on a natural explanation.

After addressing some dissent, six brave astronomers agree to the plan.

Yet astronomers agree that this was the state of things some 4.5 billion years ago.