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The famous Douglas fir in the botanical world is more capable than most other plants. But there is still a limit that it cannot overcome, and a new study explains why.

3-D glasses are based on a technique called stereoscopic imaging, in which 2-D images are combined to create an illusion of depth.

Venus, the second planet near the Sun is a pretty amazing star. Discover the strange things about one of the

For the first time, American astronomers estimated the average distance between stars in the universe.

After a 33-year journey, the Voyager 1 carried the message of human civilization that surpassed 17.7 billion kilometers, approaching the edge of the solar system.