Inside NASA’s scramble to find a backup moon plan — and the wild ideas companies are pitching

As NASA’s moon-landing plans with SpaceX hang in the balance, other bold ideas are quietly starting to take shape.

Mission to Mars: how space exploration pushes the human body to its limits

Spaceflight rewires the human body. Muscles shrink, bones thin and fluids shift towards the brain – but these changes may ...

Watch Blue Origin test fire its rocket engines ahead of NASA’s Mars launch

Blue Origin has test fired its New Glenn rocket engine as it makes final preparations for the launch of NASA’s ESCAPADE ...

ESA's first stand-alone deep-space CubeSat Henon takes shape

The European Space Agency's upcoming Henon mission will be the first ever CubeSat to independently venture into deep space, ...

What If Einstein Was Only Half Right? NASA’s New Test for Dark Energy

New strategies may soon allow scientists to test dark energy theories within our own solar system, linking cosmic-scale physics to local observation. Science advances through a cycle of proposing ...

The search for life: A space science quiz

The search for life beyond Earth is one of the most profound quests in human history. It began not in laboratories, but in the minds of ancient stargazers who imagined other worlds teeming with beings ...