A COSMIC JEWEL
What Organisms Generate the Most Oxygen? Hint: It's not the Trees.
Published on May 31, 2024
Credit: NASA
From the deep, dark depths of the ocean to the most populated continent and regions with extreme temperatures, our planet offers a range of unique features. And despite our extensive knowledge about it, many discoveries still await us.
Embark with us on this exploratory journey, as we unveil these 10 fun facts about Earth that will captivate you. After all, it is not just a planet; it's our beloved home!
Dark mysteries
Credit: Lu Gu
Despite being a familiar landscape for many, the ocean actually remains a major mystery for humanity.
The ocean, which encompasses about 71% of the Earth's surface, is massive and incredibly deep, so only 5 to 20% of it has been explored.
According to the Intergovernmental Oceanographic Commission of UNESCO, more than 90% of species on Earth are in ocean waters. Can you imagine the incredible creatures that inhabit its deepest confines? Some would say it's maybe better to just not know.
Extreme temperatures
Credit: Ilse Orsel
Although the Earth is teeming with numerous species that vary in size and color, there exist corners where life just can't flourish. If you're a summer person, this fact will make you shudder.
Cold can be really annoying, right? Imagine being at -128.6 degrees Fahrenheit! Believe it or not, that is the lowest temperature ever recorded on Earth, according to the World Meteorological Organization.
You probably already guessed where this icy milestone was achieved. That's right, in the frozen Antarctica, back in 1983.
The hot core
Credit: Tetiana Grypachevska
Let's shift our focus from the freezing regions to discover the hottest part ofEarth: its inner core.
Deep within our planet lies the Earth's inner core, a massive sphere of iron with a radius of about 760 miles and temperatures soaring to a staggering 9,300°F. To put this into perspective, this is similar to the temperature of the solar surface!
Surprisingly, despite the extreme heat, the Earth's inner core remains solid, a fact that can be attributed to the immense pressure exerted upon it.
Longer days
Credit: CHUTTERSNAP
There are moments when we wish for more hours in a day to complete our tasks and savor every moment, right? Well, here's some news for you to know: Earth's days are indeed getting longer, with projections indicating they might eventually stretch to 25 hours in the next centuries. However, this is happening very, very slowly.
The lengthening of our days is a consequence of the gradual slowing down of Earth's rotation, a phenomenon attributed to the moon's progressive drift away from our planet. This means that, over a billion years ago, Earth's days were shorter than today!
A huge piece of land
Credit: NASA
Just as we all go through personal makeovers at different points of our lives, houses, cities, and even the Earth itself experience transformations. However, while it may only take you a few minutes to get a haircut, the Earth's changes occur over much longer periods.
According to the theory of continental drift proposed last century, about 200 million years ago, there were no different continents like today, but a single large landmass: the big Pangea.
The movement of the tectonic plates caused Pangea to gradually fracture and disperse into separate portions of land, which would be the origin of today's continents.
60% of people live here
Credit: Rob Curran
When discussing continents, it's impossible to overlook Asia, the largest and most populous continent on Earth.
Encompassing some 48 countries (including the two most populous nations on the planet, India and China), Asia hosts 60% of the world's population. That's right, more than half of Earth's inhabitants call this continent home.
So, if you're not a fan of bustling crowds, the Asian continent wouldn't be your ideal vacation spot.
Only 3%
Credit: Michael C
About 97% of the Earth's water is in the oceans. But that water is saline, which unfortunately means we can't drink it. This leaves us with a mere 3% of freshwater on our planet.
But that is not all; out of that 3%, a significant 2% is locked in glaciers and ice caps, leaving only 1% available for our use.
Don't panic; it's still a substantial amount of water. However, it's crucial that we remain conscientious about conserving and preserving this valuable resource.
8-minute trip
Credit: Sara Kurfeß
Light travels at an impressive 186,000 mi/sec. Now, that's what we call fast. However, due to the vast distance between the Sun and Earth—some 93 million miles—sunlight takes about 8 minutes to reach our planet.
That means that if the Sun were to suddenly extinguish, aside from the catastrophic consequences that would follow, it would take us about 8 minutes to realize the dire event had occurred.
Not a single drop
Credit: Bailey Hall
We have already talked about water; now it is time to talk about the lack of it. Covering an area of 41,000 square miles in northern Chile, the Atacama Desert is one of the driest places on the planet.
In the Atacama, rainfall is so scant that certain regions have never experienced a single drop in recorded history!
Yes, this place looks like the set of a science fiction movie. But what's truly amazing is that despite its extreme aridity, there are some life forms that inhabit it.
Low-profile heroes
Credit: Marek Okon
While we show our love and appreciation for forests, the true masters of oxygen production are beneath the waves. That's right, most of the Earth's oxygen is produced in the oceans.
This large production essential for life is the responsibility of the oceanic plankton. These countless tiny organisms perform photosynthesis, just like plants and trees. They release oxygen into the ocean, and that oxygen then makes its way into the atmosphere, keeping us all breathing.