An object lurking in the outer region of our solar system may well be the elusive Planet 9, a leading British astronomer has suggested after digging through the telescope archives of 250,000 point sources.
Possible evidence of a mysterious planet up to 10 times bigger than Earth, with a distant orbit around the Sun, has been unveiled by professor of astrophysics at Imperial College of London, Michael Rowan-Robinson. Aiming to prove – or rule out – the existence of another big planet beyond Neptune, the UK scientist decided to conduct a new analysis of data collected by the Infrared Astronomical Satellite (IRAS) in 1983.
The astronomer has looked through some 250,000 point sources detected by the telescope, which took a far-infrared survey of 96% of the sky. Having analyzed the data, keeping in mind the hypothetical planet’s size and distance, “at the very limit of the survey,” he singled out a moving object that the satellite picked out on three occasions.
The candidate for Planet 9 would be up to five times the mass of Earth, according to the IRAS data. Its orbital distance would be some 225 times farther than that of our planet, equaling about 33.7 billion kilometers (20.9 billion miles) from the Sun.
If the enigmatic object is indeed rotating around the Sun at such a distance, it would be extremely cold and not much sunlight would be reflected by it, making it even more elusive and harder to find. While the latest study is not a clear detection, it could be valuable as guidance for where exactly to search for the new planet, the astronomer concluded.
“Given the great interest of the Planet 9 hypothesis, it would be worthwhile to check whether an object with the proposed parameters and in the region of sky proposed, is inconsistent with the planetary ephemerides,” he wrote in the preprint paper, accepted for publication in the Monthly Notices of the Royal Astronomical Society.
A debate on the possible existence of an undiscovered planet in our solar system has been ongoing for decades. With no concrete evidence found, there has been speculation about its presence, mainly based on the gravitational clustering of objects in the system’s outer reaches. Several years ago, a suggestion was put forward that a group of icy objects that lie beyond the orbit of Neptune in the Kuiper Belt are possibly under the gravitational influence of a larger mysterious body, possibly Planet 9. The claim was based not on observation, but on modeling.
Currently, the eighth and farthest known planet from the Sun is Neptune. In the last century, Pluto, discovered in 1930, was regarded as the ninth planet, but a controversial vote at the International Astronomical Union (IAU) in 2006 formally excluded it from the solar system’s ‘planets’, and reclassified it as a dwarf planet.
Protesters thronged the streets of Australian cities on Saturday, demanding an end to what they called the “tyranny” and “oppression” of lockdowns, vaccine mandates, and the proposed expansion of the government’s pandemic powers.
In Melbourne, Sky News reporter Sophie Elsworth described “tens of thousands of people streaming through the streets.” The march came after a week of smaller protests aimed at Victoria Premier Dan Andrews’ controversial pandemic bill, which if approved by the state’s legislature would allow Andrews and Health Minister Martin Foley to declare an indefinite state of emergency and issue public health orders by decree – including “any order… that the minister believes is reasonably necessary to protect public health.”
Tens of thousands of people keep streaming through the streets. Many I’ve spoken to are concerned about the state govt, Premier, vaccine mandates, the pandemic bill & what future holds for their kids. #melbourneprotestpic.twitter.com/smexulQ4ts
Should the bill pass, it would allow Andrews to target certain classes of people with these orders, categorizing them by age, occupation, or vaccination status. Fines for noncompliance would range from up to AU$21,800 for people and AU$109,000 for businesses.
Alternative media sources claimed that more than 100,000 people showed up to protest. However, the demonstration remained free of the violent clashes seen at protests in Melbourne in recent months.
“Australia has been willing to send troops to all parts of the world to help people become free,” one military veteran told a crowd of listeners during the protest. “To now be fighting oppression here in our own country, it’s saddening.”
Melbourne Australia 🇦🇺
An Aussie veteran is calling former servicemen and cops who have sworn an oath to Australia to stand up against the tyranny 👊 pic.twitter.com/4RsoRMjoJE
Huge numbers of protesters also turned out in Sydney, and although more than 600 police officers were deployed to watch over the gathering, no arrests were made, 9News reported.
Holding signs decrying state “tyranny,” the demonstrators chanted “freedom” and called for the firing of state politicians who have implemented a two-tier system where the unvaccinated are denied many of the privileges extended to the fully jabbed.
Similarly massive gatherings took place in Adelaide, Brisbane, and Perth, with no notable incidents of violence or police action. Further afield, protests are taking place in more than 120 cities around the world this weekend, in a loosely coordinated event dubbed the ‘Worldwide Rally For Freedom’ by activists.
Thousands of people have descended across Rundle Park today as part of an Adelaide freedom rally. Some of those in the crowd say they have lost their job as a result of mandated vaccinations in their sector. @9NewsAdelpic.twitter.com/YdzvxYJhqF
