Centuries after he transformed humanity’s understanding of the universe, Galileo Galilei continues to inspire people with ideas that extend far beyond astronomy and physics. Today’s Quote of the Day features one of his most enduring reflections on knowledge and discovery: “All truths are easy to understand once they are discovered; the point is to discover…

Deep inside the mountains of Peru, scientists have discovered two tiny frog species that were completely unknown until now. They were found in a special type of mountain forest called an elfin forest. These forests are cold, wet and often covered in thick mist. They grow high in the mountains, where the trees stay short…