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A weird, cigar-shaped object flew through the solar system last year. Now astronomers may know where it came from. – Tech –





  • In October 2017, astronomers detected a strange, cigar-shaped object passing through our solar system.
  • The object, called ‘Oumuamua, is a comet from another star system.
  • A team of astronomers compared the path of ‘Oumuamua through space to the motions of millions of stars to try and figure out where it came from.
  • The team found four possible candidate stars for the interstellar comet’s home, but they say the search is not over.

After a Hawaiian telescope spotted an object called ‘Oumuamua flying through space in October 2017, astronomers realized it was weird.

Very weird.

The object had a cigar-like shape and was 750 feet by 115 feet in size, or roughly as large as a skyscraper. It was dark red in color and moving inexplicably fast. Just in case, one group of astronomers even scanned it for alien radio emissions (yet heard nothing).

Most importantly, ‘Oumuamua wasn’t circling the sun like a typical space rock. Instead, it had dived between Mercury and the sun, swooped below our home star, and was zooming past Earth on its way out of our solar system.

This showed that ‘Oumuamua — whose name means “a messenger from afar, arriving first” in Hawaiian — was actually an interstellar traveler from beyond the solar system.

The path of the object 'Oumuamua through the solar system in September and October

The path of the object ‘Oumuamua through the solar system in September and October 2017.

(nagualdesign and Tomruen/Wikipedia (CC BY-SA 4.0))

Astronomers eventually determined ‘Oumuamua wasn’t an asteroid but instead a “mildly active” comet.

But if it is not from our solar system, then where did it come from?

Using the newest and most precise star map ever created, eight astronomers have located four stars that are candidates for ‘Oumuamua’s home. Each star’s path in relatively recent history matches somewhat closely to the comet’s calculated path.

Their study, highlighted Tuesday in a European Space Agency (ESA) press release, was recently accepted for publication in the Astronomical Journal, a peer-reviewed science publication.

How the team found candidate homes for ‘Oumuamua

An illustration of the Gaia

An illustration of the Gaia spacecraft.


The research team began its search with an unprecedented map of 1.7 billion stars created by an ESA spacecraft called Gaia. The new map, released in April, is the second major Gaia dataset published by the ESA since the spacecraft launched in December 2013.

The map doesn’t just note the position of the stars, though: It also shows where stars are moving through space and how fast.

About 7 million stars in Gaia’s database have motion data that is detailed enough to let astronomers precisely “rewind” their positions to millions of years in the past.


By comparing the historic path of ‘Oumuamua against these millions of stellar paths, the team discovered four candidates which line up within a few light-years of the comet. One of these star systems may have ejected ‘Oumuamua toward Earth, likely via a giant planet early in the system’s formation.

All of the candidates are dwarf stars, which means they are small and burn very hot. Two were already named (HD 292249 and HIP 3757) and two others were temporarily named by the team (“home-3” and “home-4”).

The closest match to the path of ‘Oumuamua was with the dwarf star HIP 3757. The paths of the star and wayward comet came within two light-years of each other some 1 million years or so ago.

So, as of right now, this star may be the best candidate yet for where ‘Oumuamua hails from. But astronomers are hardly satisfied with that answer.

Why the search is not over

Gaia's all-sky view of our Milky Way Galaxy and neighbouring galaxies, based on measurements of nearly 1.7 billion

Gaia’s all-sky view of our Milky Way Galaxy and neighbouring galaxies, based on measurements of nearly 1.7 billion stars.


The researchers behind the new study aren’t confident they’ve found ‘Oumuamua’s home.

For one, Gaia’s latest and most detailed sample of 7 million stars — while vast — is only partial. Some 180 million stars exist closer to Earth than the ones examined by the research team.

“Hence it is [therefore] unlikely that we would find the home system in our study,” the authors wrote.

The team also looked for encounters within the past few million years. In reality, ‘Oumuamua may have traveled much farther and longer before reaching our solar system — perhaps tens of millions of years or more, the authors said.

In addition, the four stars pinpointed by the search aren’t yet known to harbor any planets, let alone worlds large enough to kick ‘Oumuamua all the way to Earth.

Finally, the speed of ‘Oumuamua is better explained by a two-star (or binary) system, yet none of the four systems described by the study have more than one star in them.

The astronomers behind the work are waiting for Gaia’s third star map to be released. Those data should describe the ultra-precise motions of 10 times as many nearby stars as the team looked at for their study — perhaps including the one from which our interstellar visitor originated.

“The search for ‘Oumuamua’s home continues,” the authors said.


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Public officers above 58 years and with pre-existing conditions told to work from home: The Standard




Head of Public Service Joseph Kinyua. [File, Standard]
In a document from Head of Public Service, Joseph Kinyua new measure have been outlined to curb the bulging spread of covid-19. Public officers with underlying health conditions and those who are over 58 years -a group that experts have classified as most vulnerable to the virus will be required to execute their duties from home.


However, the new rule excluded personnel in the security sector and other critical and essential services.
“All State and public officers with pre-existing medical conditions and/or aged 58 years and above serving in CSG5 (job group ‘S’) and below or their equivalents should forthwith work from home,” read the document,” read the document.
To ensure that those working from home deliver, the Public Service directs that there be clear assignments and targets tasked for the period designated and a clear reporting line to monitor and review work done.
SEE ALSO: Thinking inside the cardboard box for post-lockdown work stations
Others measures outlined in the document include the provision of personal protective equipment to staff, provision of sanitizers and access to washing facilities fitted with soap and water, temperature checks for all staff and clients entering public offices regular fumigation of office premises and vehicles and minimizing of visitors except by prior appointments.
Officers who contract the virus and come back to work after quarantine or isolation period will be required to follow specific directives such as obtaining clearance from the isolation facility certified by the designated persons indicating that the public officer is free and safe from Covid-19. The officer will also be required to stay away from duty station for a period of seven days after the date of medical certification.
“The period a public officer spends in quarantine or isolation due to Covid-19, shall be treated as sick leave and shall be subject to the Provisions of the Human Resource Policy and procedures Manual for the Public Service(May,2016),” read the document.
The service has also made discrimination and stigmatization an offence and has guaranteed those affected with the virus to receive adequate access to mental health and psychosocial supported offered by the government.
The new directives targeting the Public Services come at a time when Kenyans have increasingly shown lack of strict observance of the issued guidelines even as the number of positive Covid-19 cases skyrocket to 13,771 and leaving 238 dead as of today.
SEE ALSO: Working from home could be blessing in disguise for persons with disabilities
Principal Secretaries/ Accounting Officers will be personally responsible for effective enforcement and compliance of the current guidelines and any future directives issued to mitigate the spread of Covid-19.

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Uhuru convenes summit to review rising Covid-19 cases: The Standard




President Uhuru Kenyatta (pictured) will on Friday, July 24, meet governors following the ballooning Covid-19 infections in recent days.
The session will among other things review the efficacy of the containment measures in place and review the impact of the phased easing of the restrictions, State House said in a statement.
This story is being updated.
SEE ALSO: Sakaja resigns from Covid-19 Senate committee, in court tomorrow

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Drastic life changes affecting mental health




Kenya has been ranked 6th among African countries with the highest cases of depression, this has triggered anxiety by the World Health Organization (WHO), with 1.9 million people suffering from a form of mental conditions such as depression, substance abuse.

KBC Radio_KICD Timetable

Globally, one in four people is affected by mental or neurological disorders at some point in their lives, this is according to the WHO.

Currently, around 450 million people suffer from such conditions, placing mental disorders among the leading causes of ill-health and disability worldwide.

The pandemic has also been known to cause significant distress, mostly affecting the state of one’s mental well-being.

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With the spread of the COVID-19 pandemic attributed to the novel Coronavirus disease, millions have been affected globally with over 14 million infections and half a million deaths as to date. This has brought about uncertainty coupled with difficult situations, including job loss and the risk of contracting the deadly virus.

In Kenya the first Coronavirus case was reported in Nairobi by the Ministry of Health on the 12th March 2020.  It was not until the government put in place precautionary measures including a curfew and lockdown (the latter having being lifted) due to an increase in the number of infections that people began feeling its effect both economically and socially.

A study by Dr. Habil Otanga,  a Lecturer at the University of Nairobi, Department of Psychology says  that such measures can in turn lead to surge in mental related illnesses including depression, feelings of confusion, anger and fear, and even substance abuse. It also brings with it a sense of boredom, loneliness, anger, isolation and frustration. In the post-quarantine/isolation period, loss of employment due to the depressed economy and the stigma around the disease are also likely to lead to mental health problems.

The Kenya National Bureau of Statistics (KNBS) states that at least 300,000 Kenyans have lost their jobs due to the Coronavirus pandemic between the period of January and March this year.

KNBC noted that the number of employed Kenyans plunged to 17.8 million as of March from 18.1 million people as compared to last year in December. The Report states that the unemployment rate in Kenya stands at 13.7 per cent as of March this year while it stood 12.4 per cent in December 2019.


Mama T (not her real name) is among millions of Kenyans who have been affected by containment measures put in place to curb the spread of the virus, either by losing their source of income or having to work under tough guidelines put in place by the MOH.

As young mother and an event organizer, she has found it hard to explain to her children why they cannot go to school or socialize freely with their peers as before.

“Sometimes it gets difficult as they do not understand what is happening due to their age, this at times becomes hard on me as they often think I am punishing them,”

Her contract was put on hold as no event or public gatherings can take place due to the pandemic. This has brought other challenges along with it, as she has to find means of fending for her family expenditures that including rent and food.

“I often wake up in the middle of the night with worries about my next move as the pandemic does not exhibit any signs of easing up,” she says. She adds that she has been forced to sort for manual jobs to keep her family afloat.

Ms. Mary Wahome, a Counseling Psychologist and Programs Director at ‘The Reason to Hope,’ in Karen, Nairobi says that such kind of drastic life changes have an adverse effect on one’s mental status including their family members and if not addressed early can lead to depression among other issues.

“We have had cases of people indulging in substance abuse to deal with the uncertainty and stress brought about by the pandemic, this in turn leads to dependence and also domestic abuse,”

Sam Njoroge , a waiter at a local hotel in Kiambu, has found himself indulging in substance abuse due to challenges he is facing after the hotel he was working in was closed down as it has not yet met the standards required by the MOH to open.

“My day starts at 6am where I go to a local pub, here I can get a drink for as little as Sh30, It makes me suppress the frustration I feel.” he says.

Sam is among the many who have found themselves in the same predicament and resulted to substance abuse finding ways to beat strict measures put in place by the government on the sale of alcohol so as to cope.

Mary says, situations like Sam’s are dangerous and if not addressed early can lead to serious complications, including addiction and dependency, violent behavior and also early death due to health complications.

She has, however, lauded the government for encouraging mental wellness and also launching the Psychological First Aid (PFA) guide in the wake of the virus putting emphasis on the three action principal of look, listen and link. “When we follow this it will be easy to identify an individual in distress and also offer assistance”.

Mary has urged anyone feeling the weight of the virus taking a toll on them not to hesitate but look for someone to talk to.

“You should not only seek help from a specialist but also talk to a friend, let them know what you are undergoing and how you feel, this will help ease their emotional stress and also find ways of dealing with the situation they are facing,” She added

Mary continued to stress on the need to perform frequent body exercises as a form of stress relief, reading and also taking advantage of this unfortunate COVID-19 period to engage in hobbies and talent development.

“Let people take this as an opportunity to kip fit, get in touch with one’s inner self and  also engage in   reading that would  help expand their knowledge.

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