One of the most awkward parts of writing a book is that, eventually, authors have to ask people for “blurbs” – the endorsements that you see on the cover of a book, encouraging you to buy it. I am now ...

A new scientific theory on solar tide effects has dramatically improved the accuracy of calculating how much faster clocks ...

Mars is where that leadership will be proven. And if NASA is serious about sending humans there, and keeping them safe while they’re there, that investment in long-term infrastructure needs to start ...