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The Rotational Period of the Sun

This activity, from the Royal Observatory Greenwich, introduces students to ways of combining errors (uncertainties) from two independent measured quantities. Using the equation for Doppler shift, the error in the rotational velocity and time period are calculated.

The content of the files are identical,...

The Age of the Universe

This activity, from the Royal Observatory Greenwich, looks at Hubble’s law, whereby students use real data from the Sloan Digital Sky Survey to plot a graph from which they can obtain the Hubble constant. Students then look at the possible sources of error in their data and use this to calculate the uncertainty in...

space:uk - Summer 2015, Issue 43

This edition of the magazine from the UK Space Agency includes:

  • The launch of the Earth Observation satellite, Sentinel 2A
  • News about the Rocket (salad) Science experiment
  • Tim Peake's training for his mission to the International Space Station
  • The launch of the International...

space:uk - Spring 2015, Issue 42

This edition of the magazine, from the UK Space Agency includes:

  • The discovery Beagle 2 on Mars
  • The AstroPi code competition
  • The landing of Philae on comet 67P in pictures
  • The UK's new funding for space programmes
  • British built space technology
  • The...

Importance of exploration

The Northern Lights have been the subject of wonder for millennia.  In this film, physicist Melanie Windridge explores the arctic in her search for the aurora borealis, or Nothern Lights.  She briefly explains how the Northern Lights are formed and the links between science and exploration.

Melanie also...

Exploring Saturn

A Catalyst article following the journey of the space probes Huygens and Cassini, sent to explore Titan, a moon of Saturn. After a seven year journey Huygens was set to fall through the atmosphere transmitting data back to Earth via Cassini so more can be learnt about this distant moon. The article describes the...

Designs on Space: the Lifecycle of a Satellite

A Catalyst article about designing, building and testing a spacecraft. There are thousands of man-made satellites orbiting the Earth. Some are only a few hundred kilometres above the Earth and complete one orbit roughly every 90 minutes. Geostationary satellites are located around 40 000 kilometres from the surface...

Arctic Terns, Satellites and Conker Trees

A podcast from the Planet Earth Online collection and the Natural Environment Research Council (NERC). As the map of Earth's gravity – as revealed by the European Space Agency's (ESA) sleek GOCE satellite – comes into sharper focus, Richard Hollingham speaks to a researcher who tells us what early results from the...

A Clearer Picture of Climate Change

A case study produced by the Engineering and Physical Sciences Research Council (EPSRC). More accurate global weather forecasts and a better understanding of climate change are in prospect thanks to a breakthrough by electrical engineers at Queen’s University Belfast. 

The team has developed a high...

Dust to dust? The importance of soil

This Catalyst article looks at soil composition and the reasons behind protecting soil from turning into dust. The UN Year of Soils highlighted the many ways in which humans rely on soil for much more than growing crops.

This article is from Catalyst: Secondary Science Review 2016, Volume 26, Issue 4.

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