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  1. It is because water is essential to life; even minute traces of it on another planet can indicate that life could or did exist on that planet. Water is one of the more abundant molecules in living cells and the one most critical to life as we know it.

  2. Jul 31, 2022 · Water is one of the more abundant molecules in living cells and the one most critical to life as we know it. Approximately 60–70 percent of your body is made up of water. Without it, life simply would not exist.

  3. All known life needs liquid water to function properly. It’s essential in part because water is such a good solvent, readily dissolving and transporting nutrients across a wide range of temperatures. Its molecules also play a key role in ensuring proteins behave properly.

  4. Published: November 1, 2021 at 4:00 am. Water, and specifically liquid water, is deemed so important to the creation and sustenance of life that few scientists entertain the possibility of life existing on worlds without it. The search for extra-terrestrial life by organisations like NASA often boils down to one simple strategy: “follow the water”.

  5. Nov 29, 2003 · WITHOUT water, life could not exist. Or so the theory goes. But this basic tenet of science, which has dictated the search for living systems on other planets, is being challenged.

  6. Dec 19, 2016 · In order to determine whether life could arise without water, we must first decide exactly what we mean by life. By Darwinian standards, all life must be able to reproduce, grow, be active, and change continuously before death.

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  8. In fact: Of all the water on Earth, less than 1% is fresh and available to supply human demands for food, energy, and everyday life. Feeding an additional 2 billion people by 2050 will require a 15% increase in water withdrawals, and the water required to produce energy is expected to increase by more than 85%.