Residual thermal readings, molecular and heavy-element by-products from nuclear burning, but this obviously started out as a gas supergiant, not a natural star.

"Captain, I am picking up some unusual thermal readings about three hundred kilometers northwest of the city in an unpopulated sector."

My sensors tell me there's someone, but the thermal readings are all funny.

With the cloak shielding her thermal readings, she was virtually undetectable, except by the most sophisticated of sensing devices.

"I am also getting a steady but slow variance in thermal readings."

Tank pressures are fine, both tanks are full, but I can't understand these thermal readings.

Depending on the state of preservation, I may also use a probe to take thermal readings from the body.

All he knew, from the way that the captain's thermal readings had reacted, was that something was seriously wrong.

He could see thermal readings to the precise centigrade, but he couldn't see a person's expression.

I can see the valley entrance now, for it is marked by high thermal readings and a visible outflow of water vapor.