Many surprising and astounding discoveries were produced during the twentieth century.
Only a few events can compare to the Sputnik launch, which sent the first artificial satellite into orbit.
On October 4, 1957, a metal sphere the size of a beach ball made history, ushering in the space age and forever altering our perception of our place in the universe.
Sputnik was much more than a technological marvel. It was the beginning of a new era of human creativity and a sign of human yearning to push the boundaries of what was possible. Her radio transmission reverberated around the world, both literally and metaphorically, because it was sent above the Earth's atmosphere.
It not only marked the beginning of space exploration, but it also marked a profound shift in global politics and popular mood.
Sputnik and the Cold War
The ideological, political, and military rivalry between the two superpowers—the US and the Soviet Union—dominated the era that gave rise to the Sputnik myth.
The struggle between these countries, known colloquially as the Cold War, gradually turned its focus from internal matters to unexplored areas of space.
This was not a romantic adventure; it was a race for power, with each milestone representing a claim to supremacy in geopolitics and technology.
The Sputnik project was built against the backdrop of the Cold War rivalry, which was mirrored in many facets of the space race.
Military objectives drove rapid advancements in missile technology in the years following World War II.
Wernher von Braun, a German engineer and rocket scientist, was transported to the United States as part of Operation Paperclip to work on missile development. During this time, the Soviet Union also acquired German missile technology and expertise.
Both countries have been testing increasingly powerful missiles, some of which can travel to the edge of space.
By the mid-1950s, both the United States and the Soviet Union had announced that they intended to launch artificial satellites into Earth orbit as part of a global science initiative to better understand the physical status of Earth's properties.
However, few could have predicted the huge impact their initiatives would have.
The creation and design of Sputnik
Sputnik is credited to the Soviet Union's space programme, specifically the covert research centre the Space Rocket Corporation. Sergey Korolev, the chief designer, was a capable and imaginative project manager. He built Sputnik with the help of a team of engineers and scientists.
Sputnik, named after the Russian word for "passenger" or "satellite," had a robust, appealing design.
Because a sphere has the least surface area for a given volume, it can endure extreme pressure during launch and in the space environment, making the decision to choose a spherical design critical.
Sputnik's body is made of highly polished aluminium alloy and is made of two independent hemispheres that are joined together to reflect sunlight.
Four external radio antennae, purposefully longer than the sphere's diameter, were dotted around the satellite's exterior.It contains pressure and orientation maintenance mechanisms, a radio transmitter, a battery, and a fan to manage the temperature.
Radio signals were carried back to Earth by these antennas that protruded from one edge of the spherical. The transmissions were just short beeps that indicated the satellite was in operation but included very little information.
Due to its modest size and the limits of the technology available at the time, Sputnik did not carry scientific instruments, unlike many current satellites.
Its main goal was to demonstrate that artificial objects could be launched into Earth's orbit.
Sputnik 1 launch
A watershed in human history was reached on October 4, 1957, with the launch of Sputnik 1.
Sputnik was the first artificial satellite to orbit the Earth, having been sent into orbit by the R-7 Semyork, the first intercontinental ballistic missile ever.
The space age and the period of human space travel began with this historic event.
The launch preparations took place at the remote Baikonur Cosmodrome in the steppes of Kazakhstan in complete secrecy.
With bated breath, the Sergei Korolev team watched as the clock approached the scheduled launch time.
The R-7 rocket sprang into life at 10:28 p.m. Moscow time, taking off from the launch site and soaring across the night sky.
Sputnik was sent into orbit a little while later when the rocket's last stage shut down.
With an apogee (the farthest point from Earth) of roughly 947 kilometers and a perigee (the closest point to Earth) of roughly 227 kilometers, Sputnik 1 was launched into an elliptical low Earth orbit.
The spacecraft completed one orbit of the Earth every 96 minutes or so, clocking in at a speed of about 29,000 kilometers per hour.
Following a successful deployment, Sputnik started sending out signals again to Earth.
Radio operators worldwide have detected the basic "beep-beep-beep" noises.
The information obtained from the satellite's radio signals—primarily its temperature and pressure—was priceless even though it lacked any scientific instrumentation.
Sputnik cleared the path for all upcoming satellites used for data collection and telecommunication by proving that data transmission from orbit to Earth is feasible.
From October 4 to October 26, 1957, or until the transmitter's batteries ran out, was the duration of the Sputnik 1 mission.
The actual satellite, on the other hand, kept orbiting the planet for a few more months before slowly re-entering the atmosphere and disintegrating on January 4, 1958.
Panic in America and reactions throughout the world
Global politics were profoundly and immediately affected by the Sputnik launch.
The incident sent shockwaves around the world, particularly in the United States, as it revealed the Soviet Union's scientific supremacy and demonstrated their ability to fire intercontinental ballistic missiles.
In the United States, the incident—now referred to as the "Sputnik shock"—caused a surge of concern and reflection.
The imagined balance of power was suddenly thrown off. In the quickly developing field of space technology, it was the Soviet Union, not the United States, that emerged as the clear leader.
This posed a clear threat to America's reputation as the most technologically sophisticated country following World War II.
As a result, the US educational system was critically examined, with a focus on STEM (science, technology, engineering, and math) sectors. Federal funding for science instruction and research was also significantly increased.
The space race—an intense struggle between the Soviet Union and the United States for supremacy in space exploration—began with the launch of Sputnik, in many senses.
Technology advanced quickly as a result of this rivalry, with one side trying to surpass the other.
There was a rush of space missions in the years that followed, each one more ambitious than the last, leading up to the Apollo moon landings in 1969.
This incident also increased the stakes in the Cold War from a political standpoint. The Outer Space Treaty of 1967, which established the legal framework guiding international space activity, was the consequence of rising urgency surrounding the negotiation of international space agreements.
The US government underwent a significant overhaul in response to the Sputnik launch in an attempt to catch up in the space competition. The National Aeronautics and Space Administration (NASA) was founded in 1958, which was a significant turning point in US space exploration policy. This was one of the most notable examples of this.
Sputnik 2 launch
On November 3, 1957, the Soviet Union grabbed headlines once more with the historic launch of Sputnik 2, which came just one month after the first one.
Sputnik 2 launched in space went much beyond the innovative first Sputnik mission.
Laika, first living space traveller
The first living space traveller, a dog by the name of Laika, was aboard this much larger and more sophisticated spacecraft than its predecessor.
Compared to Sputnik 1, Sputnik 2's design was more intricate. Approximately 508 kilos was its weight, which was far greater than Sputnik 1.
The satellite had multiple compartments, including a power system, a unit housing scientific equipment for biological study, and a locked chamber for Laika.
Unfortunately, Laika did not survive the journey since the necessary technology to safely return living things from orbit had not yet been established.
Concerns over the care and security of animals used in scientific study were brought up by the Sputnik 2 mission, which also brought attention to the moral difficulties associated with space travel.
Even though Laika's mission ended tragically, it yielded important, if preliminary, data on how living things react to spaceflight settings.
In the end, this made human spaceflight possible.
Following the success of Sputnik 1 and 2, a string of progressively sophisticated and intricate Sputnik missions were launched, leading up to Sputnik 5, which successfully brought back the canines Belka and Strelka from space in August 1960.
These missions served as evidence of both the Soviet Union's pioneering role in the early years of space exploration and the swift advancement of space technology.
With the exception of the Sputnik series, the Soviet Union went on to accomplish important firsts in space exploration, such as Yuri Gagarin's first successful manned space journey onboard Vostok 1 in April 1961.
Later, they accomplished the first spacewalk by Alexei Leonov in 1965 and the first woman in space, Valentina Tereshkova, on board Vostok 6 in 1963.
The Sputnik missions created the scientific and technological groundwork for this advancement.