We've spent decades scratching the surface of Mars trying to uncover life there. But we've been searching a barren wasteland ...

It set world records and is every bit as ridiculous as it sounds. Here's everything you need to know.

Scientists in Japan have developed a high-resolution X-ray telescope sharp enough to distinguish an object just 3.5 mm wide ...

From air purifiers to cozy blankets, we tested dozens of products to help ease cold and flu symptoms. We also consulted ...