Engineers have developed a new way to monitor how tiny lab-grown human heart tissues beat—by effectively "listening" to the ...

When you’re driving your car, you’re probably regularly looking at the speedometer to make sure you comply with the local speed limits. The method by which it works is simple enough: ...

During peace talks, President Trump repeatedly floated the idea that Syria could help subdue Hezbollah in Lebanon. The proposal revived bitter memories. By Christina Goldbaum and Raja Abdulrahim Masha ...