Interstellar Overdrive
The discovery of a massive interstellar object travelling at phenomenal speed towards our Sun has thrown astrophysicists, ufologists and tin-foil hat conspiracy theorists alike into speculative overdrive.
The object, known as 3I/ATLAS, is said to most likely be a comet and it is only the third time in history astronomers have discovered an interstellar object that originated from outside of our Solar System.
3I/ATLAS is travelling towards the Sun at approximately 221,000 kilometres per hour or 61 kilometres per second, faster than any other interstellar object observed thus far. Its speed will increase as it approaches the Sun and is expected to reach its closest point to the Sun around 30 October. By that time however, Earth will be on the other side of the Solar System, making the object difficult to observe until it reappears from behind the Sun in early December.
On its current projected course, 3I/ATLAS is expected to pass Earth at a distance of 270 million kilometres and the Sun at a distance of 210 million kilometres, just within the orbit of Mars. It will then track past Jupiter, exiting into the Outer Solar System by March next year, never to be seen again as it travels on a hyperbolic trajectory through the cosmos.
The size and physical properties of 3I/ATLAS are currently a matter of investigation by astronomers around the world, as are its origins. At this stage, its size remains unknown, but observations reveal the object is active, meaning it has an icy nucleus, and a telltale cloud of dust and gas called a coma. Hence, 3I/ATLAS has been classified as a comet rather than an asteroid.
Where Did It Come From?
Interstellar space is commonly referred to as ‘the space between the stars but is technically defined as the region between the heliosphere of the Sun and the astrospheres of other stars. Far from an empty abyss, interstellar space contains a composition of dust, gas, cosmic rays and radiation constituting what is known as the ‘interstellar medium’. These components, remnants of stars, galaxy formation and other cosmic processes, also provide the building blocks of the Universe.
3I/ATLAS has been approaching from the general direction of the constellation Sagittarius, where the central region of the Milky Way is located. It is only the third interstellar object to be recorded entering our Solar System, following the discovery of Oumuamua in 2017 and 2I/Borisov in 2019. These mysterious objects are formed in far-off, unknown star systems and ejected into interstellar space, travelling for millions or even billions of years on a fantastic voyage through the galaxy and beyond.
But not everyone is convinced that 3I/ATLAS is a benign chunk of cosmic debris hurtling nonchalantly towards our Sun.
Instead, social media is alight with wild conjecture over 3I/ATLAS and the possible implications for humanity. Will it finally provide living proof of extraterrestrials, that we are truly not alone in a cold, uncaring and godless Universe? Is it camouflaged alien technology? Are we under attack by an invader race or should we prepare for peaceful first contact?
A recent claim from Harvard astrophysicist Professor Avi Loeb that 3I/ATLAS has only a 0.005% chance of being naturally formed has only fuelled the proliferation of wild speculations and far-ranging theories from online commentators.
Among the more disturbing conspiracy theories circulating is the notion that the discovery of 3I/ATLAS is being used as a media ploy to distract public attention from more earthly matters, such as the Jeffrey Epstein files. Given that 3I/ATLAS has been independently observed and verified, this claim was summarily dismissed by Professor Loeb, stating: “Its existence has nothing to do with terrestrial politics.”
Is The Truth Out There?
Throughout human history we have pondered and plumbed the possibilities of what lies beyond our earthly realm, be it the afterlife or the far reaches of our Universe. The skies above us have provided ceaseless wonder for what may exist in that dark and vast expanse we call space. Visitations from otherworldly crafts and encounters with strange beings are commonplace in the lore of many ancient civilisations that have inhabited the earth for thousands of years.
And the idea that ‘we are not alone’ persists to this day. There exists an entire and expansive subculture of science fiction devoted to the topic, from ‘War Of The Worlds’ by H.G. Wells and ‘50s silver-screen gems like ‘It Came From Outer Space’ to ‘The X-Files’ and modern-day blockbuster films like ‘Independence Day’, ‘First Contact’, ‘District 9’ and ‘Arrival’, even ‘Alien Vs Cowboys’.
Our modern obsession with UFOs and little green men from Mars surely stems from what happened in Roswell, New Mexico in 1947. The crash landing of an unidentified flying object and its subsequent retrieval by the US government was a watershed moment that created a cultural phenomenon and underpins much of the conspiratorial thinking prevalent in the late 20th and early 21st centuries. The mere existence of a facility such as Area 51 inspires not only the imagination, but also suspicion.
By all accounts though, 3I/ATLAS will pass by Earth at a confidently safe distance and disappear from sight with little more than a ‘how do you do?’, imparting no more cosmic knowledge of where it came from or where it is going. Just another day on Earth.
