Answer to the challenge in The joy of discovery: a personal experience Understand article
The challenge can be read in ‘The joy of discovery: a personal experience‘ The trail from which Comet West was discovered is indicated by an arrow Image courtesy of ESO
The challenge can be read in ‘The joy of discovery: a personal experience‘
![](https://www.scienceinschool.org/wp-content/uploads/2006/12/issue3_comet5_large.jpg)
Image courtesy of ESO