These waves do ... light. The giant planet Jupiter, whose large moons Galileo discovered with his "trouble-making" telescope, is more than 5 times farther from the Sun than the Earth is. We see ...

Plants don’t have eyes to see light like animals or insects ... The sun is very bright, isn’t it kids? Plants may not have any eyes to shade, but we do. Sunglasses on! Cool… ...

they’ll look for longer at the red light than the white. So we know they can tell those two colours apart.” Alice is an expert in how and when babies see and learn about colours. She adds ...