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Russian spacewalkers take sample of mystery hole at space station
Using knives and shears, a pair of Russian spacewalkers Tuesday cut samples of material around a mysterious hole in a Soyuz spacecraft docked on the International Space Station (ISS) that a Moscow official suggested could have been deliberate sabotage.
Curiosity drills Mars rock sample for first time in two years
After a two-year stint on the disabled list, Curiosity's drill is working again. This week, the Mars rover successfully collected a rock sample for the first time in almost two years.
Blood sample new way of detecting cancer
A new RNA test of blood platelets can be used to detect, classify and pinpoint the location of cancer by analyzing a sample equivalent to one drop of blood. Using this new method for blood-based RNA tests of blood platelets, researchers have been able to identify cancer with 96 percent accuracy, according to a study at Umeå University in Sweden.

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