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.
Essential Oils to Kill Fleas. Essential oils are controversial for use on cats because felines lack a key enzyme that both humans and dogs use to process the oils. Thus, flea prevention in cats is more difficult when looking for natural options. However, some essential oils can be applied to cats when done properly and with veterinary supervision.