"Precision in these measurements is critical, as even subtle discrepancies could signal deviations from the model — ...

Explore the best of PBS science programs and science news. Video and web content from your favorite PBS shows like Nature, NOVA, and more. Animals, space and astronomy, natural history, environment ...

This week, NASA announced that it will partner with the European Space Agency to send a 4,760-pound spacecraft into space to peer out over billions of galaxies in an effort to map and measure the ...