Tuesday, September 26By Kids For Kids

space

space

Space

Space

H, space
SPACE - Outer space is a zone that occurs about 100 kilometers (60 miles) above the planet, where there is no appreciable air to breathe or to scatter light. In that area, blue gives way to black because oxygen molecules are not in enough abundance to make the sky blue. No one knows exactly how big space is. We measure long distances in space in "light-years," representing the distance it takes for light to travel in a year (roughly 5.8 trillion miles, or 9.3 trillion kilometers)/(Refernce - www.space.com/24870-what-is-space.html)   I have a collection of some of the good videos. Please click here  and enjoy. Let me know if you have good videos you have come across and would like to share on this website. Thanks Samarth  
Why go to Mars? | Curiosity rover: mission briefing | Exploring the Universe | NASA

Why go to Mars? | Curiosity rover: mission briefing | Exploring the Universe | NASA

space
L A turbulent history Over the past three decades, spacecrafts have shown us that Mars is rocky, cold, and dry beneath its hazy, pink sky. Evidence from Mars missions suggest Mars may have been much warmer and wetter than we observe it to be today. An early clue was this huge shield volcano about 26 kilometers high and 600 kilometers across; has about the same area as Arizona. Known as Olympus Mons. Mars' highest point: Olympus Mons. Image: NASA/JPL-Caltec We've discovered that today's Martian wasteland hints at a formerly volatile world where volcanoes once raged, meteors plowed deep craters, and flash floods rushed over the land. For example, the canyon system of Valles Marineris is largest and deepest known ...