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The Earth is continuously showered in cosmic rays. Their collisions in the upper atmosphere produces elementary particles that rain down upon us in huge numbers. There's no need to worry though, since these elementary ...

Building a Particle Detector

Exploring Space

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Most of what we know about the Universe comes from looking out in to space, and analysing the light (and other electromagnetic radiation) that reaches us.  Spectroscopy is one of the tools that we can use, and it allows us ...

Mini Spectroscopes

Exploring Space

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Satellites transmit their signals back to Earth fairly indiscriminately, and anyone with the right equipment can receive the signals as they pass overhead. The complexity of the equipment needed depends on the satellite; but ...

Receiving Satellite Transmissions

Exploring Space

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There are more human-made objects on the Moon than anywhere else in the Universe (with one obvious exception).  You won't be able to see this stuff from Earth, but you can learn where we've left it. Our Moon is ...

What’s on the Moon?

Exploring Space

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The Flexible Image Transport System (FITS) was designed specifically for astronomy images.  In this article we'll look at how you can write programs to read the data and recreate the picture stored within it. A detailed ...

Image File Processing (FITS and Android)

Exploring Space

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You might know that the word 'planet' has its origins in the ancient Greek word for 'wandering star'. So the bad news is that you're trying to spot things that look like stars, but that move around and appear in different ...

Planet Spotting

Exploring Space

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Most people are not going to get the chance to launch a satellite into space, but everyone can launch a KiteSat. Of course you can't strictly speaking add the 'sat' part because it will never be in orbit, but we're mainly ...

KiteSat-1

Exploring Space

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Some basic craft supplies are all you need to start playing around with the mechanical side of  robotics.  We're going to focus mainly on arms and hands, but you could apply the same techniques to other parts.  We're also ...

Prototype Robot Parts

Exploring Space

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The invention of the microscope completely changed people's view of their surroundings.  They suddenly became aware of an invisible parallel world - with tiny creatures that caused some of our previously mysterious ...

DIY Microscope

Exploring Space