The hustle and bustle of daily life is a stark contrast to the tranquility of the night sky.
When Thomas Edison wanted a filament for his light bulb, he scoured the globe collecting thousands of candidates before settling on bamboo. (It was years before people were able to make tungsten work properly.) That’s our traditional way of getting materials. We picked up stones for axes, chopped wood for housing and carved tools out of bone.
Our galaxy may have billions of free-floating planets that exist in the darkness of space without any companion planets or even a host sun.
Volcanic eruptions did not lead to the extinction of the dinosaurs, according to a new study. The research also suggests Earth’s oceans can absorb large amounts of carbon dioxide—as long as it’s released gradually over an extremely long time.