导读：最近南极熊整理了一篇关于国内商业航天公司纷纷使用3D打印技术来制造火箭发动机零件的文章《融资几百亿元的商业航天领域，都在3D打印火箭零部件》，有读者留言让关注一下Relativity Space这家公司，实际上南极熊之前也多次报道过这家公司如何使用3D ...

Fidelity's Contrafund marked down its biggest stake in Space X-rival Relativity Space by around 21%, from $22.83 a share to $17.96.

Quantum theory and Einstein's theory of general relativity are two of the greatest successes in modern physics. Each works ...

In 2015, the general theory of relativity will be 100 years old. In November 2015, Albert Einstein gave weekly lectures to the Prussian Academy of Sciences in which he set out the fundamental field ...

Thanks to Einstein’s relativity, time flows differently on Mars than on Earth. NIST scientists have now nailed down the ...

Einstein put forth special relativity, which explains motion at near-light speeds. Although there are many consequences of Special Relativity, this complex theory consists of only two postulates, both ...

Light from a distant γ-ray burst backs up a key prediction of Albert Einstein's theory of relativity — that photon speed is the same regardless of energy. But it might set the stage for evolution of ...

Why can't anything travel faster than the speed of light? Do black holes really suck? And why is the universe expanding? These are just a few of the questions author and astrophysicist Jeffrey Bennett ...

California-based startup Relativity Space is one of many launch startups, but it stands out for its 3D-printing approach to manufacturing rockets while also pursuing fully reusable rockets. Relativity ...

Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. When we think about Einstein and the theory of relativity, all sorts of ...