The coming decades of space exploration hinge on a single, stubborn number: the 225 million kilometres between Earth and Mars ...

Plasma engines could be the future of human space travel, and Russia’s “manetoplasma rockets” have the most ambitious travel goals ...

SpaceX owns 98% of global rocket launches, a monopoly with virtually no competition. Only China is competing with Elon Musk at this point in number of launches and, while the country is getting closer ...

In response to a query from Ars about the engine test anomalies, Rocket Lab Chief Executive Officer Pete Beck downplayed concerns.

When building a model rocket, it can be fun to get into the maths of it all—calculating the expected performance of your build, and then seeing how it measures up in the real world. To aid in that ...