Leif Johnson

Interview NASA's social media managers tell us about a massive shift that's taken place at the space agency.

There will be plenty of rules if given the go-ahead, which may not happen anytime soon.

In Depth The American astronaut returns after 340 days in microgravity - here's why it's so important.

In Depth Know what's legal and what's not before you take to the skies.

The world may be lapping up a certain star war, but a lot happened this year in our own humble galaxy that's worthy of celebration.

In Depth A possible 'dead' comet is coming frighteningly close to Earth - here's all the facts plus how you can see it.