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Following is a summary of current science news briefs.

packaging of effervescent tabletsChilean scientists create contraceptive vaccine for dogs

Veterinary scientists in Chile have invented a contraceptive vaccine for dogs, which can be used in both males and females, and may provide an inexpensive option to help control the country's growing canine population. Scientists from the University of Chile Veterinary and Livestock Faculty developed the vaccine from an existing formula used to sterilize pigs, as professor Leonardo Saenz explains.

Repaired SpaceX rocket to fly by early December, company says

Space Exploration Technologies, or SpaceX, expects to return a repaired and upgraded Falcon 9 rocket to flight around the start of December, a company vice president said, less than six months after one exploded shortly after liftoff. The 208-foot-tall (63-meter) rocket carrying a load of cargo for the International Space Station exploded less than three minutes after liftoff from Florida on June 28.

Astronauts test high definition 4K camera in space

Astronauts on the International Space Station inserted an effervescent tablet packaging tablet in a floating ball of water to test a new device that can record four times the resolution of a normal high definition camera. NASA said higher resolution images and frame rate videos from the new RED Epic Dragon camera can provide more information when used in scientific experiments.

Gene editing could pave way for pig organ transplants: U.S. study

U.S. researchers have used a new gene editing technique to trim away potentially harmful virus genes that have impeded the use of pig organs for transplants in humans. The study, published in the journal Science, expands on capabilities of the genome editing tool known as CRISPR-Cas9, which works as a type of molecular scissors that can selectively trim away unwanted parts of the genome.

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