Today is Fascination of Plants Day. To celebrate we’ll have a few posts out today. At midday we have a review of What a Plant Knows by Daniel Chamovitz, a book that shows how fascinating plants can be. At 17:00 there’s news of why the people applying for the Mars One reality programme had better like salad.

First up we go inside a cell to look at Golgi bodies, which move through the cell over the surface of the endoplasmic reticulum. Is there a physical connection? The answer should be easy to find, you just find a Golgi body and tug. But what do you use to tug a Golgi body? Lasers!