Blogs and articles about space
Technically speaking, the International Space Station is moving all the time. Not only is it in orbit, moving at 17,000 mph, but there are onboard gyroscopes constantly positioning it. Otherwise, the space station would spin around recklessly and, eventually, fall back to earth. What keeps the space station moving? The ISS moves in a circle …
As there is no air resistance in space, and in accordance with Newton’s First Law (A body remains in the state of rest or in the state of motion at the same speed unless acted upon by an external unbalanced force), the space station has to utilize no energy to keep moving while under the …
The International Space Station is a large spacecraft in orbit around Earth. … It orbits Earth at an average altitude of approximately 250 miles. It travels at 17,500 mph. This means it orbits Earth every 90 minutes. Is the space station stationary or moving? It is constantly orbiting around the earth. It travels at an …
A simple refracting telescope consists of two lenses, the Objective and the eyepiece. Basically the objective lens produces an image of a distant object at its focus and the eyepiece lens magnifies this image. Does a refracting telescope have an objective lens? Most refracting telescopes use two main lenses. The largest lens is called the …
The first stage of planetary evolution is cratering. Most of Earth’s history has been destroyed by an active crust and erosion. What are the 4 stages of planetary development? After becoming distinct planets, they went through four stages of formation: Differentiation, Cratering, Flooding and Surface Evolution. What stage in planetary development is it believed that …
The differentiation between these layers is due to processes that took place during the early stages of Earth’s formation (ca. 4.5 billion years ago). At this time, melting would have caused denser substances to sink toward the center while less-dense materials would have migrated to the crust. What caused Earth to differentiate and what was …
What are the 4 stages of planetary development? After becoming distinct planets, they went through four stages of formation: Differentiation, Cratering, Flooding and Surface Evolution. What is the first stage of planetary development quizlet? The first stage of planetary evolution is cratering. Most of Earth’s history has been destroyed by an active crust and erosion. …
The Solar System has evolved considerably since its initial formation. … In roughly 5 billion years, the Sun will cool and expand outward to many times its current diameter (becoming a red giant), before casting off its outer layers as a planetary nebula and leaving behind a stellar remnant known as a white dwarf. Will …
The Sun will evolve dramatically as it ages off the main sequence, ballooning up to a size that engulfs the orbits of Mercury, Venus, and Earth and losing nearly half of its mass over the next 7 billion years. As the Sun evolves, it will become a red giant star, growing in size until it …
Why are the surface temperatures of Venus and Earth so very different? Venus is too close to the sun to have liquid water oceans and Earth is far enough from the sun to have liquid water oceans. Which is something about Venus and Earth that is different? There are many more differences between both planets. …