When living creatures produce and emit light it’s called bioluminescence. The main reason fireflies glow is to find a mate, though they can also light up under other situations as a warning to others.
Archives: Blue Sky
How were the Madison lakes formed?
Before the last glaciation, which started about 30,000 years ago, there was a deep river valley that ran under where Lake Mendota and the other Madison lakes are now. A glacier moved into this area and slowly filled up the valley.
How did dinosaurs evolve into birds?
Not all dinosaurs were big. In fact, the smallest ones are the ones that are still alive today. The one big question is: How exactly did flight evolve?
How does science protect great works of art?
Art conservators can use X-rays and infrared technology to learn more about the structure of a painting, the paint layers and what happened to a painting over time.
What is beyond Pluto?
There are many, many objects beyond Pluto, but where they came from and when they formed is a whole other question.