Suddenly a thud knocked the shuttle ninety degrees as the crew inside were bashed against the ceiling of the small craft.
The weather was VFR, with visibility at 25 miles and a broken ceiling at 20,000 feet.
The development of an economically viable way to extract oil from oil shale would put a ceiling on oil prices and would extend the oil era by decades.
But the ceiling on prices does not necessarily mean a crash is inevitable.
Annual price rises would be limited to a ceiling determined by the government in line with inflation and exchange rate considerations.
Some people are filled with a sense of freedom and openness when they walk into a large, near-empty room with a high ceiling , high windows and plenty of light.
A number of miles passed under the nose as the aircraft brushed the bottom of the weather ceiling .
the aircraft's quoted ceiling of 24,000 feet
The pilot of a single-engine Piper Cherokee flew in marginal VFR conditions when the ceiling suddenly dropped.
The cloud ceiling was about 9,000 feet, with a temperature of 62 degrees.