Can the speed of light be slowed down?

The speed of light in a vacuum, commonly referred to as C, is widely accepted as a universal constant. This means that…

Where is Philae?

(For background on Rosetta and Philae, read this article I wrote for Jump! magazine). When Philae landed on comet Comet 67P/Churyumov-Gerasimenko…

What causes the smell after rain?

There’s a particular smell in the air after rain has fallen on dry ground, a distinctive fresh sort of scent…