Cosmos

 1. Zero gravity works better than normal gravity  You can get yourself into some pretty weird positions while floating around in free space or even just sitting still on Earth's surface. With no gravity at your back, your muscles are forced to do their jobs without any assistance from gravity. This makes them stronger and helps prevent injuries caused by muscle breakdown. Your joints are also healthier because they don't have to bear the weight of your body as much.  2. You can sleep anywhere  If you've ever tried sleeping in bed with someone else beside you, you know that it's hard enough to fall asleep. If you're floating around in a spaceship, though, you'll be able to drift off instantly. That means you'll be able to rest anywhere in the ship—including chairs or couches—and not worry about waking anyone up.  3. Zero gravity is great for exercise  When we think about exercising in zero-gravity conditions, the first thing that comes to mind is running on...

 1. Spacecraft  The term spacecraft can refer to any vehicle that travels through space. In recent years, the term has become synonymous with man-made objects used to travel into outer space. These vehicles are created from metals, plastics, ceramics, composites and other materials. They have been designed for many purposes including exploration, colonization, scientific research and military operations.  Spacecraft can range in size from tiny satellites to huge interplanetary probes, but regardless of their sizes they all share common characteristics. Most spacecraft are composed of several systems that work together to provide propulsion and control. Propulsion is how a spacecraft moves. Control refers to a mechanism that allows a spacecraft to maintain its position relative to distant points. Some spacecraft use reaction engines while others make use of rockets. Rockets are fueled by chemicals, whereas reaction engines use nuclear fission or fusion processes. A th...

 THE SOLAR SYSTEM : How horrible the space is or is it amazing and beautiful 1. Sun  The sun is the energy source that provides light, heat, and life to our planet. Without the sun, we would not have any plants, animals, or humans. The sun also gives us a lot of energy in the form of sunlight. This energy allows the use of different types of plants. It can be used by using solar panels. 1. Mercury - Smallest planet, hottest surface temp  Mercury has no magnetic field, and its atmosphere is extremely thin. Mercury's gravitational force makes it difficult for spacecraft to land, but it does have a dense iron core. Mercury is the closest planet to the sun, making its days are shortest at only 58 Earth years. Mercury's day lasts 88 earth hours. On average, Mercury rotates once every 59 days.  2. Venus - Second smallest planet  Venus is covered in thick clouds that cover about 60 percent of the planet, leaving the remaining 40 percent clear. Venus' high pressure atmo...