Ask a Scientist

You sent us your questions, and NSF-funded scientists are answering! Check out this series of brief videos for answers to science and engineering questions you might be wondering about.

What is a black hole?

What is a black hole? Hans Krimm, an observational astronomer at the National Science Foundation, answers the question on this edition of "Ask a Scientist."

What is neuroethics?

What is neuroethics? Tim Brown, doctoral candidate and research assistant at University of Washington's Center for Neurotechnology, answers the question on this edition of "Ask a Scientist."

Why does group categorization matter?

Why does group categorization matter? Kristina Olson, associate professor of psychology at University of Washington and 2018 Alan T. Waterman Award recipient, answers the question on this edition of "Ask a Scientist."