According to Japanese billionaire Masayoshi Son, the uncanny valley shouldn't exist. Robots should make people smile - they should make humans feel happy and comfortable.
To that end, his company Softbank earlier today unveiled Pepper - a cooing little robot that's capable of understanding emotion.
I like to think we've gotten pretty familiar with what the surface of Mars has to offer; what we haven't really done is gone below. That's what NASA's looking to do with the InSight Lander. Due to launch in 2016, it's going to plumb the depths of Mars - and hopefully dig up something incredible.