March 2018 issue!

36 Driving on hydrogen

In the automotive world, the hydrogen revolution has long been heralded. And we're still waiting for it. But an alliance between Toyota and Quebec could finally get the ball rolling.

40 A shrink at your fingertips

Whether you're stressed, depressed or addicted, all you need to do now is activate your smartphone to alleviate these torments. Too good to be true?

6 Journey to the heart of an artificial stomach

8 Taunted by the moon

The Google Lunar XPrize ends without a winner. Why is this?

10 How much does a kilo weigh?

Scientists finally have the answer to that age-old question.

11 Molecular cinema

The most powerful X-ray source on Earth films the movement of molecules.

14 Le Pharmachien persists

Olivier Bernard is back to tackle the root of alternative facts: bogus arguments.

44 The immune system, an open book

Luis Barreiro is interested in this long-standing relationship between pathogens and humans.