But for some people, the discovery raised a different question.

This and related discoveries raised the question of what it means for a substance to be an "element".

There was scarcely time to think or even to frame the countless questions that their discovery had raised.

But discoveries about the genetics of eye disorders can sometimes raise more questions than they answer.

Other experts say that the discovery raises important questions about the marine environment and its effect on human health.

For those with not enough else to worry about, the discovery raises the question: could this happen to our own star, the Sun?

The discovery raised the total amount of money recovered to £141,000 ($394,800).

There was still no answer to the great question which the discovery of the Martians had raised.

"So the discovery of this site must raise some interesting issues for you people?"

But the discovery of dangerous ingredients in foods and drugs has raised more serious questions.