"This asteroid belt is a most intriguing phenomenon," he replied.

It's an intriguing phenomenon that people have recognized for centuries, but what on Earth causes this calm?

Dawn in its supraequatorial regions is a most intriguing phenomenon.

Whatever produced them has been, from the beginning, a most intriguing and frustrating phenomenon.

But in intermitent bursts, the videos showed intriguing phenomena.

Cases of it are known, for instance the intriguing phenomenon called meiotic drive.

Soon after, he found the intriguing phenomenon of synesthesia on the crossroads of music and visual art.

By then, he was a phenomenon, more intriguing for not having yet had a solo show.

And the Weather Channel's marketing people have noticed an intriguing phenomenon.

I was monitoring radiation levels outside the ship when I noted an intriguing phenomenon.