Yes, the Earth's surface is about 70-71% covered by water, mostly saltwater in oceans, with only a small fraction being accessible freshwater, making it a very watery planet. While the surface is mostly water, the total volume of all water (oceans, ice, groundwater, atmosphere) is a small percentage of the Earth's total mass, with about 97% of all water being salty and only about 3% fresh.
Yes, it's true that about 70% (specifically around 71%) of the Earth's surface is covered by water, primarily in the oceans, but this water makes up a tiny fraction of the Earth's total mass, with most of the planet being rock and metal, and the vast majority of that water being saline and locked in ice or underground.
Your body is made up mostly of water. Water covers 71 percent of Earth's surface. And almost all of it—96.5 percent—is salt water.
Mother Earth's surface is ~70% water and 100% stunning! 🌏 The only planet (that we know of) with life, great temperatures, and rent payments, it has an equatorial diameter of 7,926 miles. Earth completes a rotation around the Sun every 365.25 days, which is why we keep our calendars on track with leap days.
The ocean covers approximately 70% of Earth's surface. It's the largest livable space on our planet, and there's more life there than anywhere else on Earth.
Up to 60% of the human adult body is water. According to Mitchell and others (1945), the brain and heart are composed of 73% water, and the lungs are about 83% water. The skin contains 64% water, muscles and kidneys are 79%, and even the bones are watery: 31%.
More than 70% of our planet is ocean – and 90% of that ocean is deep sea.
Some of these protons interact with oxygen molecules in the lunar soil to produce water. This water isn't anything like what you could drink, though: it's in such small amounts that the lunar soil is still hundreds of times drier than Earth's deserts.
Without Jupiter, we wouldn't exist. Gas giant saved Earth from plunging into the Sun, say scientists. Jupiter is responsible for saving Earth from a fiery death early in the Solar System's history, and may also explain a longstanding mystery about the formation of meteorites.
It is estimated that Europa has an outer layer of water around 100 km (62 mi) thick – a part frozen as its crust and a part as a liquid ocean underneath the ice.
Bottom line: New evidence from Harvard suggests that – a few billion years ago – Earth was a true water world, completely covered by a global ocean, with little if any visible land.
By 2030, demand could outpace supply by 56%. Less than 1% of the world's water is usable fresh water. The AI boom is adding unprecedented pressure on resources.
Most of the ocean remains unexplored (around 80-95%) due to its immense size, extreme darkness, near-freezing temperatures, crushing pressure (over 1,000 times surface pressure in the deep), and the high cost and technological challenges of developing specialized equipment to withstand these harsh, hostile conditions. Sunlight can't penetrate far, visibility is near zero, and deep-sea life is adapted to pressure that would crush most vessels, making direct human study difficult and expensive.
The ocean is the largest unexplored place on Earth—less than 5 percent of it has been explored. Remotely operated vehicles allow scientists to explore ocean depths that are inaccessible to SCUBA divers (Fig. 1.8). Ocean exploration relies on teams of science researchers across the globe.
Rivers and Streams
Only about three percent of Earth's water is fresh water. Of that, only about 1.2 percent can be used as drinking water; the rest is locked up in glaciers, ice caps, and permafrost, or buried deep in the ground. Most of our drinking water comes from rivers and streams.
When waters run dry, people can't get enough to drink, wash, or feed crops, and economic decline may occur. In addition, inadequate sanitation—a problem for 2.4 billion people—can lead to deadly diarrheal diseases, including cholera and typhoid fever, and other water-borne illnesses.
Even a small move closer to the sun could have a huge impact. That's because warming would cause glaciers to melt, raising sea levels and flooding most of the planet. Without land to absorb some of the sun's heat, temperatures on Earth would continue to rise.
Despite the similarities, though, there are several good reasons why Jupiter is categorically NOT a star, failed otherwise.
In our solar system, Mercury and Venus are the only two planets that do not have any moons, primarily because they are so close to the Sun that its intense gravity makes it difficult for any potential moon to maintain a stable orbit. Mercury's small size and proximity, combined with Venus's slow, retrograde rotation, mean neither planet can hold onto natural satellites.
"You can drink it, or you can use it in your bath or in the shower, or make tea with it," Stardust shares. "However you choose to use it, you're infusing it with your intention." For example, taking a bath with moon water can detox your energy and cleanse your aura, Stardust says.
It begins 9 hours before the lunar eclipse, for this eclipse, it starts at 12:59 PM on September 7, 2025. During this time, people avoid auspicious activities, temple visits, cooking, and worship, as the cosmic energies are believed to be disturbed. Avoid touching sacred plants like Tulsi, Peepal, and Banyan.
Distribution of countries according to their share of the Earth's surface. The largest countries in terms of area are Russia (3.35%), Canada (1.96%) and China (1.88%). Together they occupy about 7.2% of the Earth's surface.
Today, over 80% of the global ocean (and 50% of the U.S. Ocean) is still unmapped, with even more unexplored. One of the biggest challenges of ocean exploration is the intense pressures in the deep ocean. In addition, zero visibility and extreme cold temperatures make it difficult to explore the vast ocean.
The whole world will never be underwater. But our coastlines would be very different. If all the ice covering Antarctica , Greenland, and in mountain glaciers around the world were to melt, sea level would rise about 70 meters (230 feet). The ocean would cover all the coastal cities.