If you're an adult and you choose not to believe in science, fine, but please don't prevent your children from learning about it and letting them draw their own conclusions.

I like to regard myself as someone who's capable of critical thought, that is to say, who can evaluate claims.

NASA is an engine of innovation and inspiration as well as the world's premier space exploration agency, and we are well served by politicians working to keep it that way, instead of turning it into a mere jobs program, or worse, cutting its budget.

Everyone, red state, blue state, everyone supports space exploration.

As his talent expands, some of his stories become pointed social commentary; some are surprisingly effective religious tracts, disguised as science fiction. Others still are nostalgic vignettes, but under it all is still Bradbury, the poet of 20th-century neurosis.

I kind of fell backwards into acting. I was studying to be a high school teacher. I look now and I understand completely, or actually barely, how much work it is to be a teacher. It's an incredible amount of work.

I was 17 the first time I set foot in a classroom, but 10 years later, I would graduate from Cambridge with a Ph.D. 'Educated' is the story of how I came by my education. It is also the story of how I lost my family.

Learning is constant. I learn something new every day.