Thousands of satellites fly overhead every day, helping us with things like weather forecasts, scientific research, communications, TV broadcasts (and maybe some surreptitious spying). How much do you know about these eyes in the sky?
Finally, it's possible to think about satellites in terms of where they're "looking." Most of the objects sent into space over the last few decades look down at Earth. These satellites have cameras and equipment capable of seeing our world through various wavelengths of light, making it pos...
北斗卫星导航系统Nowadays, we are used to using our phones to get our location. But how do our phones know where we are in the world and in which direction we are going? It is all thanks to the satellites in space that help our phones calculate our position.Depending on where you are ...
Additionally, the ISS monitors the whereabouts of various stars, satellites and ground stations — as well as the sun — in order to navigate [source: NASA]. Now that you know how the ISS stays in space, let's see what it's like to live and work there. ISS Communications To stay in...
How do space shuttles avoid damage from asteroids? How did the space race affect the world? What was the mission of the Challenger space shuttle? What is a suborbital spaceflight? How fast does the space shuttle accelerate? What prevents satellites, such as the space shuttle, from falling?
It takes Ariane less than an hour to put two satellites into space:Liftoff: At liftoff, the rocket weighs up to 780 tonnes (as much as about 500 cars), of which the payload represents 10 tonnes at most. In other words, the cargo represents just 1 percent of the total weight! To put...
Auroras shine behind the International Space Station, backdropped by a docked Russian Soyuz spacecraft. Also visible as a bright light is the moon and the curved Earth.(Image credit: Matthew Dominick/NASA/X) Thousands of photos of Earth taken by satellites and astronauts confirm our planet's ...
Related:World Space Week 2024: How space technology arms scientists fighting climate change What exactly do climate satellites do? The word "satellite" is thrown around a lot these days, but in basic terms, it just refers to any object sent to live in our planet's orbit to perform a desig...
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The receiver then usestrilaterationto determine your exact location. Basically, it draws a sphere around each of three satellites it can locate. These three spheres intersect in two points -- one is in space, and one is on the ground. The point on the ground at which the three spheres int...