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...system and details of when the observation was made, is typically stored within the image file as metadata. We need to employ careful methods to make measurements from images such as Figure 1 if we are to make reliable inferences about stars and galaxies. In this section, you will examine how these measurements are made, and what they can tell us...Astronomy: images of...

...think broadly about the challenges that faced the designer, though. Do not be put off by an unfamiliar product. You will not need an advanced knowledge of these products and their manufacture to consider their design. To help give you an appreciation of the wide spectrum of contexts in which designing is undertaken and the variety of designs which emerge, our case studies...

...system of our planet. The oceans also contain very deep valleys, known as trenches, where ocean crust is being destroyed. You may have heard of the famous Mariana Trench, about 11 km (nearly 7 miles!) deep in the ocean. The famous film maker James Cameron travelled to the deepest place on Earth! Transcript The average swimming pool deep end is about 5m deep. How many...

...System. These areas act as vast ‘cold traps’: many chemical substances such as water, other ices and organic compounds delivered to the Moon by asteroid and comet impacts would migrate to the poles and accumulate there in a permanent deep freeze. Our Moon may therefore be witness to billions of years of history of water and other important molecules in the vicinity of...