When sunlight reaches Earth’s atmosphere, it bounces off of molecules. The air molecules scatter light — just like billiard balls do when they collide. The shorter the wavelength of the light, the more it gets scattered. This is why the sun’s light looks blue. Sky Blue Is Due to Rayleigh Scattering Sky blue is a …
Mars is one of our closest neighbours in the Solar System, and for centuries, it inspired the imagination of humankind. Features such as impact craters and valleys, as well as dunes and polar ice caps fooled people into thinking that life might exist on the planet. Today, however, Mars is a sterile frozen desert. But …
If you’re like most people, Mars isn’t the kind of place you want to live. From its thin atmosphere to its freezing temperatures, it’s an environment that’s incredibly hostile. But the planet might have once been more like ours — with a thicker atmosphere and oceans of liquid water. In fact, a new study suggests …
Mars is a rocky planet that orbits our Sun, a star. Like Earth, it has clouds, winds, seasons, polar ice caps, volcanoes and canyons. It also has two moons: Phobos, an inner moon, and Deimos, an outer one. Both are pockmarked with craters from meteor impacts. The Red Planet Mars is the next planet out …
Mars, the Red Planet, is a fascinating object in the night sky. It is one of the brightest objects in the sky and is easily spotted with the naked eye, a telescope or binoculars. Mars orbits the Sun in an elliptical path, completing one orbit every 687 days. The planet goes into opposition, when it …
Mars is known for its bright rust color, which is caused by iron-rich minerals in its regolith. This loose dust and rock covers the Red Planet’s surface. Over the centuries, Mars has been a subject of fascination for many people. This has led to a great deal of speculation and mythmaking about the possibility of …
