Scientists already have
a wealth of information about the universe. They believe a powerful explosion1 created the universe nearly 14 billion years ago. They know that nothing moves faster than the speed of light, which is around 300,000 kilometers per second. They have also discovered that our Milky Way galaxy2 is just one of hundreds of billions of others in the entire universe. However, all of this knowledge barely
scratches the surface.
Space is extremely
vast, and scientists
are out to explore every corner of it. They are looking into how the vacuum3 of space and its near zero pressure can kill a person within seconds. Once this is understood, there might be a possibility of people surviving in outer space4.
In the meantime, experts are also hunting for treasure in space. Asteroids5 have been found to contain more
precious metals6 than Earth. In addition, planets like Neptune may have huge
quantities of diamonds and possibly even water. This month, the science and engineering7 behind space exploration8 is
presented on National Geographic Channel. Catch "
Known Universe 3" to discover what is new.
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