Planning on climbing Mount Everest? You might want to plan to be gasping for air. Learn more on this Moment of Science.
When Neil Armstrong took his "one small step", the impression he made was lasting.
More often than not, the wind dies down at night after a blustery day. Where does the wind go? Why are nights generally more calm than days?
If you can't name a politician who was also an active scientist, that doesn't mean they haven't been out there.
Scientists in England and the United States have made a breakthrough in understanding the relationship between clouds and climate.
I have a friend who says there's not much oxygen on earth. Ever since I heard that I can't catch my breath! What's the truth?
If you needed to know what the weather was like in Singapore tens of millions of years ago, you'd have to consult a different source.
This is partly due to pollution, but even in the cleanest air the sky is lighter near the horizon due to the effect of earth's atmosphere on sunlight.
Why is the moon sometimes orange or red? Why is the sky blue? These questions are closely related!