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Building Images

In this activity, students create colour images from satellite data. This allows them to study how different surfaces reflect different wavelengths of light, how coloured images are created using an RGB model, and how band combinations can be chosen to examine a particular landscape effectively.

Observatories and Telescopes

These are images of some of the European Southern Observatory telescopes and locations. They include:

* View from above ESO's La Silla observation site in the southern part of the Atacama desert, 600 km north of Santiago de Chile. The site is 2,400 metres above sea level, providing excellent observing...

Nebulae

This resource contains stunning images of nebulae, produced by the European Southern Observatory (ESO). The images include:

* View of the Orion Nebula (Messier 42), lying about 1,350 light-years from Earth, taken with the VISTA infrared survey telescope at ESO’s Paranal Observatory in Chile.

* A...

Medical Imaging

A Catalyst article about microwaves, infrared, ultraviolet and X-rays which are all electromagnetic waves. The article looks at their different uses and why some are used to create medical images and others to treat disease. The article also explores how the electromagnetic spectrum is used by medical physicists to...

Mars Express

A Catalyst article about the idea of life on Mars. Scientists involved with the Mars Express mission aim to find out more and will try to establish if there ever has been life on Mars. The article looks at the miniature devices that they will employ on the mission. 

This article is from Catalyst: GCSE...

Life in the Balance?

A Catalyst article about Earth’s biodiversity much of which appears to be teetering on the brink of a man-made extinction crisis. Scientists have suggested that, unless urgent action is taken now, many species will disappear in the next 50 years. This article looks at some of the issues involved.

This...

Journey into Inner Space

A Catalyst article about physicists working at Europe’s Large Hadron Collider who hope to have received the first results from what is probably the biggest, most expensive and most ambitious scientific experiment ever carried out. Later, they hope to solve the mystery of the fundamental forces of nature.

The...

Is There Anybody Out There?

A Catalyst article about the Kepler spacecraft, which is used to look for extra-solar planets. Scientists are hoping to shine light on the age old question of life’s existence elsewhere in the Universe using a new space-based telescope named Kepler. Launched on 6 March 2009, Kepler is searching the sky for small,...

Impact Earth

A Catalyst article about giant asteroids. Astronomers say that, one day, a giant rock from space will collide with the Earth and cause mass devastation. This could lead to the extinction of many species, including humans. The article looks at what can be done to prepare for such an impact and what happened when a...

Google in Education: a New and Open World for Learning

Produced by Google, this document looks at the company's involvement in supporting education. It illustrates the range of Google's education activities and resources. It also aims to illustrate how Google tools can support learning in a range of curriculum areas including science, technology, engineering and...

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