It has also scanned the surface of the planet using Mola (Mars Orbiter Laser Altimeter), which beams an infrared laser pulse towards the surface of the Red Planet 10 times a second.

BBC: New view of giant Martian volcano

The planet orbiting Kepler 10, by contrast, has an orbital period of a mere 20 hours and is so dense that it is probably made of iron.

ECONOMIST: The search for other Earths is hotting up

The best starting point is " Lonely Planet's top 10 Hawaiian vistas", a survey of the best spots across Maui , O'ahu and the Big Island where you will take the obligatory perfect photo and explore from there.

BBC: This is Hawaii week