We all know about environmental pollution. The air is polluted by cars, airplanes and factories. The oceans are polluted with plastic. Humans produce a lot
The two images shown here look like the beautifully colored tails of peacocks, don’t you think? Well, think again. In reality, these are giant clouds
Here’s an easy experiment you can do at home. Fill the kitchen sink with water. Then pull out the plug, and carefully watch how the
ALMA measures millimeter waves from the sky. These millimeter waves are emitted by cold dust clouds in the Universe. The clouds are so cold that
If your ears are good, you can hear very high tones. Children’s ears are usually better than the ears of grown-ups. So you might be
The Sun is a star. Not many people know that. It’s a star like all the other stars in the night sky. Or, put differently: