21.   The research pair said their discovery can have implications for other studies to make crops salt resistant.

22.   Their discoveries have practical applications in, among other things, inkjet printers, pesticide spraying and DNA analysis.

23.   Yancopoulos said the discoveries may eventually have practical implications.

24.   Besides their entertainment value, the discoveries also had broader applications.

25.   Discovery would have three chances to land today.

26.   Discovery had to be off the ground within five minutes to achieve the most fuel-efficient route to the orbiting Mir station.

27.   Discovery has enough fuel and power to stay aloft until Wednesday.

28.   Discovery has enough fuel and power to stay in orbit until Wednesday.

29.   Discovery has two opportunities to land in Florida on Wednesday.

30.   Discovery has two opportunities to land Sunday, and if not, there is enough fuel to keep the shuttle aloft through Wednesday.