Mars is easiest to see when it’s closest to Earth, which happens about every two years. This event is called “opposition.” In ...

Mercury, the closest planet to the sun, moves faster than Earth. It orbits the sun in 88 days, as opposed to our 365. So about every four months, "Mercury laps us on the track, and that makes it ...

Here's today's horoscope from the Canary - helping guide you through life, with a daily dose of musings for our readers ...

There is also a real possibility that China could overtake the US in solar system exploration. Nasa’s science programme is ...