A martian butterfly flaps its wings 🦋 Insects aren’t commonplace on Mars, so it’s no surprise that this is no butterfly as we know it. It’s actually a kind of crater, formed as a space rock hurtled towards the Red Planet and collided with its red-brown surface. The collision caused two distinct lobes of material to be flung outwards to the crater’s north and south, creating two outstretched ‘wings’ of raised ground. The wings of this particular butterfly crater are rather undefined and irregula