Major construction is complete on NASA’s largest new Space Launch System structural test stand, and engineers are now installing equipment needed to test the rocket’s biggest fuel tank. The stand is ...

Longevity isn't just about how long you live — it's also about staying healthy for as much of that time as possible. The "sit to stand" test can be a good way to figure out how healthy you are, and it ...

Can this 30-second challenge predict how long you’ll live? The 30-second sit-to-stand test has gained popularity for its gimmicky promise of predicting how long you’ll live, Hone Health reports. While ...