Columbia was the first shuttle to reach space, in 1981. Columbia carried dozens of astronauts into space during the next two decades, reaching several milestones.
Capstar is the brand name of a flea treatment for cats and kittens that weigh at least two pounds and are at least 4 weeks of age. It begins killing fleas within 30 minutes of ingestion and will kill more than 90 percent of the fleas in four hours.
Pyrethrin-based flea sprays are effective in killing adult fleas, but they must be used twice weekly. Permethrin-based flea sprays, which contain a stronger form of pyrethrin, are toxic to cats and must never be used on cats. Today, spot-on treatments are the new method of choice for flea prevention and treatment.