ummm, i believe our sun is halfway through it's 9 odd billion year lifecycle: this article says it was raining on mars 6 billion years ago? 1.5B years earlier t

ummm, i believe our sun is halfway through it's 9 odd billion year lifecycle: this article says it was raining on mars 6 billion years ago? 1.5B years earlier than our planet's existence? small typo you might say but still a glaring error.