FROZEN FRONTIER

10 Chilling Facts About Earth’s Southernmost Continent

Image: henrique setim

Under a cold and desolate façade, Antarctica - the icy continent at the bottom of the world - hides a myriad of mysteries and wonders. From its stunning landscapes to its unique wildlife, this frozen wilderness is one of the most intriguing places on Earth.

Grab your coat and join us in an expedition through 10 fascinating facts about the white continent.

Image: NOAA

Despite its vast ice cover, Antarctica is considered a desert because of its low precipitation levels. In fact, it's the driest continent on Earth, with some areas receiving less than 2 inches of precipitation per year. And given the fact that Antarctica’s ice sheet holds around 60% of the world’s freshwater, it is certainly a paradoxical desert!

Image: Aaron Burden

This one might sound a bit obvious, but hold your horses. Antarctica is not only the coldest continent on Earth but also holds the record for the lowest temperature ever recorded, a bone-chilling -128.6°F. The extreme cold recorded was likely due to the continent's high elevation, ice cover, and lack of air moisture.

Image: Danielle Barnes

Antarctica is home to several species of penguins, including the iconic Emperor Penguin. These flightless birds are perfectly adapted to the harsh Antarctic conditions, with layers of blubber and tightly packed feathers to keep them warm in subzero temperatures. Despite often being found in remote locations, these charming animals are currently endangered due to the effects of climate change and the warming of oceanic waters.

Image: Zoltan Tasi

While ozone-depleting gasses are emitted all over the planet, holes in the ozone layer in Earth’s atmosphere often form in extremely cold regions, due to various meteorological phenomena unique to these areas. The Antarctic ozone hole was first discovered in the 1980s and led to the ban of chemicals like chlorofluorocarbons (CFCs), which deplete ozone molecules, in commercial applications. However, despite international efforts to reduce these emissions, the ozone hole persists, albeit at a reduced size.

Image: 66 north

Almost 93% of the world's mass of icebergs is found surrounding Antarctica. These frozen giants are often formed when the massive ice shelves and glaciers found in the continent naturally break off and float away, usually drifting northward into the Southern Atlantic. Some icebergs in this region can be as large as small countries, posing a hazard to maritime navigation.

Image: National Cancer Institute

In the frigid waters beneath Antarctica's ice shelves, scientists have discovered thriving communities of microbes. These extremophiles, capable of surviving in extreme cold and darkness, play a crucial role in Antarctic ecosystems and could even offer insights into life's potential on other planets.

Image: Torsten Dederichs

Antarctica has a rich history of exploration, from the early expeditions of pioneers like Roald Amundsen and Ernest Shackleton to modern scientific research missions. The continent remains one of the last frontiers on Earth, with much of its interior still unexplored. Interestingly, astronauts are often sent to Antarctic bases during the dark winter months as training for the similarly unforgiving conditions found in space.

Image: NOAA

During the Antarctic summer, the sun doesn't set for several months in regions south of the Antarctic Circle, leading to continuous daylight. This strange phenomenon, known as the midnight sun, provides ample opportunity for scientific research and exploration, as well as relatively improved weather conditions. Temperatures as high as 64.9 °F have been recorded, though the average is far lower, around 32 °F most of the time.

Image: Torsten Dederichs

In 1959, twelve countries signed the Antarctic Treaty, establishing Antarctica as a scientific preserve and banning military activity on the continent. Today, the treaty has been ratified by 54 countries, fostering international cooperation in Antarctic research and environmental protection.

Image: Cristian Palmer

Beneath Antarctica's ice sheet lie numerous subglacial lakes, hidden from view for millions of years. These lakes, kept liquid by geothermal heat, could harbor unique forms of life and provide clues to Earth's past climate. Among these, Lake Vostok is the largest of Antarctica's known subglacial lakes, and - with an estimated volume of 1,300 cu mi - also the 6th largest lake in the world by volume.

Space fauna

Astronaut animals: The exciting adventures of 10 creatures sent to space

Image: Hester Qiang

Long before Neil Armstrong took his giant leap for mankind, Earth had already launched a small army of unexpected explorers into the great unknown. Tiny insects, brave dogs, and even a cat with a heart of steel all played their part in humanity’s quest to reach the stars. They weren’t astronauts in shiny suits, but living test pilots whose journeys helped scientists learn how breathing, eating, and simply existing might change without gravity. Join us to discover the stories of 10 extraordinary creatures that helped pave the road to space.

Image: JerzyGórecki

The very first travelers to leave our planet weren’t humans or even mammals, but fruit flies. In 1947, aboard a U.S. V-2 rocket, these tiny pioneers soared about 68 miles above Earth, crossing the invisible boundary between us and space. Scientists wanted to know how cosmic radiation might affect living beings, and to everyone’s surprise, the flies came back safe and sound. Their mission was short, but it marked the very first proof that life could survive a trip beyond our atmosphere. Not too shabby for creatures better known for buzzing around the kitchen fruit bowl!

Image: Aaron Baw

Meet Albert II, the pioneer who proved that even a small monkey could make history. In 1949, this brave male rhesus macaque rode a U.S. rocket 83 miles above Earth, becoming the very first primate—and first mammal—to cross into space. His mission lasted only minutes, but it offered priceless information about how living bodies respond to extreme altitude and near-weightlessness. Although scientists carefully tracked his pulse, breathing, and movements, Albert died upon landing. His courage, nevertheless, didn’t go unnoticed.

Image: Max Kleinen

Years before humans ever circled the globe, the Soviet Union roamed the streets of Moscow looking for its first space traveler. They finally found Laika, a gentle, stray dog with big eyes and a calm spirit. In 1957, she boarded Sputnik 2 and became the first living being to orbit Earth, gazing down on the planet from hundreds of miles above. Though her journey was brief, her bravery left a lasting mark. Laika went on to become a symbol of courage and curiosity, inspiring dreamers, scientists, and explorers of every kind, both on two legs and four.

Image: Markus Spiske

Imagine a space capsule gliding above Earth with a chimpanzee wearing a miniature spacesuit inside, calmly flipping switches like a pro. That was Ham, NASA’s first chimp to truly pilot a spacecraft. In 1961, his flight aboard Mercury-Redstone 2 sought to prove that a living being could stay focused and respond to instructions even while floating weightless. Ham’s quick thinking and steady nerves impressed scientists everywhere and made him a celebrity overnight. For a minute, he was America’s coolest astronaut!

Image: AlemCoksa

A cat in space? Oui, indeed! In the autumn of 1963, France made history by sending Félicette, a small black-and-white stray cat, on a pioneering 13-minute journey beyond Earth’s atmosphere. Carefully selected from a group of feline candidates, she was fitted with delicate electrodes designed to record her brain activity and vital signs as she ascended skyward. During her brief but extraordinary voyage, scientists on Earth monitored every heartbeat. Against all odds, she returned safely, landing back on her home planet with quiet poise. Félicette became not only the first but also the only cat ever to venture into space.

Image: Shafiqul Islam

No rush, no panic, but calm, deliberate space travel at its finest. In 1968, two humble steppe tortoises from the Soviet Union became unlikely pioneers of cosmic exploration when they were placed aboard the spacecraft Zond 5, bound for a historic lunar orbit. While humans were still dreaming of walking on the Moon, these patient reptiles were already circling it, gliding silently through the vastness of space inside their small capsule. For seven days, they endured the journey without complaint, adapting to microgravity with the quiet resilience that defines their kind. When Zond 5 finally returned to Earth, the tortoises were found alive and in good health.

Image: Ray Hennessy

Imagine being rocketed into orbit only to end up dizzy and nauseous. That was the fate of two unsuspecting bullfrogs in 1970. NASA, ever curious about how living creatures handle the unusual conditions, sent the amphibious pair into space to study how balance functions without gravity’s pull. As the frogs tumbled and twirled in their tiny capsule, scientists were able to learn how the inner ear adjusts when "up" and "down" no longer exist. It might have been a disorienting ride for the frogs, but it turned out to be a ribbiting leap forward for science!

Image: Rafael Garcin

A web with no spatial sense? That was the mystery NASA set out to explore in 1973 when two pioneering spiders, Arabella and Anita, hitched a ride aboard Skylab. Their mission: to prove an arachnid could weave a proper web in the floating world of microgravity. At first, their silken constructions were lopsided and chaotic; yet, the spiders quickly adapted. Within just a few days, they were spinning near-perfect circular webs, as if gravity had never mattered at all.

Image: Sara Kurfeß

In the late 1970s, NASA scientists wanted to observe how aquatic life would behave beyond Earth’s pull. They released a few small fish inside a spacecraft and were surprised to find them "swimming" through the air. With no gravity to anchor them, the fish instinctively paddled their fins as though suspended in an invisible, weightless sea. Their silvery bodies drifted gracefully in slow motion like tiny astronauts in scales. The result was both scientific and poetic: a surreal, floating aquarium quietly orbiting the stars.

Image: malucero

Did you know there’s a creature so resilient it can survive outer space? Tardigrades, affectionately known as "water bears", are microscopic beings capable of withstanding extremes that would destroy almost any other life form. In 2007, scientists exposed them directly to the vacuum of space with no suit, no shield, and no oxygen. The tardigrades endured blistering radiation, freezing temperatures, and complete dehydration. Yet, many of them simply shrugged it off and carried on living. Tough doesn’t even begin to describe these nearly indestructible little astronauts that are probably the hardiest beings not just on Earth, but in the entire universe.