We live in an age when all manner of scientific knowledge—from climate change to vaccinations—faces furious opposition.
Pictures from the space telescope have dazzled us for 25 years.
Amid growing signs that gender bias has affected research outcomes and damaged women's health, there’s a new push to make science more relevant to them.
More Science and Space Quizzes
For every fact we know about the moon there are a hundred superstitions, legends, and mysteries. See how well you know your lunar lore.
Are you a brain when it comes to the brain? Find out with this quiz and give your gray matter a workout in the process.
Our solar system is filled with mysterious and often mind-blowing phenomena. Do you know asteroids from meteoroids and Venus from Mars?
How much do you know about stress and how it affects your body? Take the quiz and find out—but don't stress about it.
Think you know the Smithsonian National Air and Space Museum inside and out? Test your aeronautics IQ with our carefully curated questions.
How much do you know about U.S. Apollo missions?
Before the smashup occurs, take a good look at two stars destined to collide.
A galaxy's outbursts might shine some light on star factories and point the way to a sky-watching treat.
Gigantic black holes provide a new cosmic yardstick for charting far-off stars.
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Volunteers risk their lives to vaccinate children in Islamic State-controlled territory in Syria. Video.