Harvard and Smithsonian (CfA), and its Submillimeter Array (SMA), were critical for identifying a cache of belts surrounding other stars beyond the sun where comets may reside. Regions around 74 stars ...

The US wants to put a flag on Mars. But there’s a risk it could carry unwanted stowaways that might compromise future ...

The Nova classification system is the most widely used and applied UPF definition ... Whether all plant-based meats should be classified as UPF remains a nuanced question. It’s important to consider ...