falsifiability

A technician aligns a replacement focal-plane assembly with a powerful three-dimensional microscope at NASA's Goddard Space Flight Centre in Greenbelt, Md. This FPA will be installed on the Near Infrared Camera instrument, the James Webb Space Telescope's principal imager. Credit: NASA/Goddard/Chris Gunn.

Crosstalk: To Boldly Go From Collecting Facts to Making Discoveries