With it the researchers will be able to scan the entire northern sky in about a year.
His brain was working at top speed as he scanned the sky ahead.
David did not need to scan the sky; he knew it was the dark of the moon.
He brought out his field glasses and scanned the sky.
He's afraid he couldn't stop scanning the sky for more planes.
Instead of answering me, or even searching my eyes for an answer, she scanned the sky.
He tilted his head back and scanned the empty sky.
They knew of no reason to scan the sky in daytime.
The new satellite scans the whole sky every six months.
They were scanning the sky over the castle, apparently looking for some sign.