その結果、火星の1年（約1.88地球年）を通じて、時計の進み方に1日あたり最大で226マイクロ秒もの変動が生じるという。さらに、地球と火星の位置関係が変わる約15.8年の周期で、時計のずれ幅そのものが1日あたり約40マイクロ秒の範囲で変動することもわ ...

Mind = blown.

There’s an adage coined by [Ian Betteridge] that any headline ending in a question mark can be answered by the word “No”.

The answer comes from a counterintuitive result of special relativity, a field of physics which is notoriously difficult to ...

Tim Ellis, an unassuming 31-year-old with glasses who shuffles around his sprawling rocket factory in designer sneakers, has what every space company founder longs for: a seemingly endless well of ...