IS THERE A SECOND EARTH IN THE SOLAR SYSTEM?

@j._0798

The quick answer is no. Earth is unique in the Solar System in possessing large surface oceans, a temperate climate and a thriving biosphere. But if you’d asked this question 4 billion years ago, the answer might have been different. At that time

Mars looked rather like a scaled-down version of Earth, with a thicker atmosphere and warmer climate than today, along with plenty of water and possibly even simple life forms. Venus may have been more Earth-like in those days too, but then the three planets evolved in different ways, so we’re left with just one Earth.

Although Mars looks dead today, it originally had a more Earth-like atmosphere and flowing water