During Apollo 13, a near-exact replica helped engineers solve a life-threatening issue. Today, NASA still uses spacecraft duplicates to troubleshoot problems. Iran responds to Trump's threat of ...

Imagine sending viruses into orbit not to spread disease, but to learn how to cure it. That is essentially what a team of scientists did on the International Space Station, and the results may change ...

Add Yahoo as a preferred source to see more of our stories on Google. Having kids is a decision with a lot of gravity, literally. Scientists have found that sperm in space can’t find their direction ...

Gödel found a time-travel solution in General Relativity, revealing spacetime can loop on itself. Gödel discovered a solution to General Relativity that actually permits time travel — no exotic ...

In an earlier version of this story, artist Cher Musico was identified as an art faculty member at Texas Woman's University. Musico is the operations and gallery manager at TWU. A fledgling local arts ...

Imagine it's noon and you're wandering around Dhaka under the scorching heat in search of a quiet place to work or study. You're hoping to find a quiet environment where you can focus on completing ...

Add Yahoo as a preferred source to see more of our stories on Google. During Apollo 13, a near-exact replica helped engineers solve a life-threatening issue. Today, NASA still uses spacecraft ...

'We came back as best friends': The Artemis II astronaunts talk about their historic mission & return ...