It moved toward research that was supported by verifiable facts.

This is information that, though provided by the user, contains easily verifiable facts.

In fact, good, solid clues and verifiable facts often led nowhere.

But they turn away when I point out a verifiable fact about the earth under their feet.

It was a surprising but verifiable fact that no one had ever tried.

One theory has libraries full of supporting data, while the other lacks a single verifiable fact in support.

The only verifiable fact was that from the four points of attack more than a thousand people in all had vanished during the night.

Indeed this is not a matter of critical opinion, but of verifiable fact.

"But there are enough verifiable facts here to back up everything we've told you."

Investors put in their money on that verifiable fact.