A supposed former ocean may turn to be a present ocean on Mars
Mars Express radar and a supposed ancient northern ocean on Mars!!
Why not it is now existing on Mars: the northern ocean of Mars.
And it has been mentioned in the book (The Universe and the Quran) that :there is
"Mars is inhabited and contains plant, trees, animals, human beings, mountains, rivers, seas and other things. Hence, the dwelling in Mars is suitable; because the traveler to Mars will find the water there available; he, too, will find ample food and much fruit, but we don’t know whether the weather, the temperature, and air-constituents there are suitable or not for the man of Earth; but we think that man can overcome these difficulties, or at least he can adapt himself to them."
The journey to Mars is successful