Falcon Heavy vs. the classic Saturn V

The first flight of SpaceX's Falcon Heavy rocket is scheduled for January 31.It will be the most powerful operational booster in the world –​ at twice the capacity of its nearest rival. To get a sense of perspective, let's see how it stacks up to the granddaddy of all space rockets, the Saturn V.

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A pictorial history of Earth from space

Over the past 70 years there has been a stunning assortment of images of our home planet taken from space. Take a trip through the history of Earth photography in our gallery, from the first "Earthrise" images, to a look at our precious planet from the outermost reaches of our solar system.

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