A meteor shower is a celestial event in which a number of meteors are observed to radiate, or originate, from one point in the night sky. These meteors are caused by streams of cosmic debris called meteoroids entering Earth’s atmosphere at extremely high speeds on parallel trajectories. Most meteors are smaller than a grain of sand, so almost...

How can we bring a sample of Mars safely back to Earth? With scientists worldwide curious about the Red Planet’s potential for life, NASA and the European Space Agency are working on a future “sample-return” mission to safely study Mars materials. One possible location for sample hunting could be a Martian spot called Jezero Crater, the...

All authors must admit to a dependence on the work of others. We are no exception. We owe a huge debt of gratitude to all the publications and reference sources that we have consulted and adapted for educational purposes. It would also have been quite impossible to have produced the material on this website without adapting a variety of authentic resources that we have regularly referred to. While every effort has been made, it has not always been possible to identify and cite the sources of all the material used or to trace all copyright holders. We will be happy to omit any contents or include any appropriate acknowledgements when they are brought to our notice.

Your Feedback