Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com. What is below Earth, since space is present in ...

Observations of the sky recorded thousands of years ago continue to play a remarkable role in modern science, demonstrating that careful human observation has long-lasting value. One particularly ...

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...