Nasa's dancing robot destined for Mars and other news

BBC Click's Nick Kwek looks at the week's technology news including Nasa testing its humanoid robot R5 (Valkyrie) by getting it to dance to electronic music.

Children's toy company Vtech reveals the number of children's accounts which were affected by a recent hack and Facebook's Mark Zuckerberg and his wife Priscilla Chan say they will give away 99% of their shares in the company to good causes.

More at and @BBCClick.