Making More Solar Cells from Silicon

They show how intelligence and body plans are closely linked—and could unlock AI for robots.

The test, in a brain-dead patient, was very short but represents a milestone in the long quest to use animal organs in human transplants.

The idea that consciousness is widespread is attractive to many for intellectual and, perhaps, also emotional
reasons. But can it be tested? Surprisingly, perhaps it can.

Over-the-counter coronavirus tests are finally available in the US. Some are more accurate and easier to use than others.