An asteroid is going to circle our planet for two months this autumn before going on its way.

Billions of years ago the average Earth day lasted less than 13 hours and it is continuing to lengthen. The reason lies in our relationship to the Moon.

China's Chang'e-6 mission is intended to bring back lunar samples but is also a stepping stone to much more ambitious space exploration.

The Moon may be the final frontier for mankind, but what will we eat when we get there? Pasta and protein bars made out of thin air are just the beginning.

Astronauts living on the Moon will need lots of power – but they can't take fuel supplies with them. A new generation of miniature nuclear reactors could be the answer.

Millions of observers will watch next week's American solar eclipse from the ground. But a few lucky Nasa flight crews will get a much closer view.

Rockets, planes, balloons and countless observers on the ground will be studying the North American total solar eclipse on 8 April in unprecedented detail.

The Apollo astronauts' links to Earth were primitive compared to those we enjoy today. The next generation of moonwalkers may have a far more high-resolution way of keeping in touch.