Stool samples can help doctors diagnose some health conditions. Tips for collecting a stool sample include urinating before collecting the sample and using any tools that the sample kit provides.

NASA plans to take a sample from the asteroid Bennu next year, but it must choose the best spot for the mission before it instructs its spacecraft to descend. In an announcement this week, NASA ...

NASA's Perseverance rover has completed an important part of its historic mission on Mars, by collecting a sample of rock from beneath the surface of the Red Planet in a first for humans. The sample, ...

After initially failing to capture a rock sample, NASA has confirmed that Perseverance succeeded in its second attempt. The space agency has verified that a pencil-width core of rust-colored rock is ...

As Americans scramble for at-home tests to find out if they’re infected with COVID-19, some experts are suggesting they should swab their throat, in addition to their nose, to better detect the ...