A Hawaiian telescope first spotted "Oumuamua", meaning "a messenger from afar, arriving first" in Hawaiian, in October 2017. Finally, the object was deemed as new class of "interstellar objects" never seen before.
When the object - known as Oumuamua - flew past the sun, astronomers rushed to find out more about it and reviewed data discovering that the object gained speed instead of slowing down.
"It is impossible to guess the goal behind Oumuamua without more data", Avi Loeb, chairman of Harvard's astronomy department and a co-author of the paper, told NBC News.
Their theory - and this is really, really cool - is that it might be a light sail, powered by solar radiation and of an "artificial origin" (i.e. built by aliens).
In their new paper, Shmuel Bialy and Abraham Loeb of the Harvard Smithsonian Center for Astrophysics suggest Oumuamua could have been "a lightsail of artificial origin". "Lightsails with similar dimensions have been designed and constructed by our own civilization", an excerpt from the paper read. Given its high speed and its unusual trajectory, the reddish, stadium-sized whatever-it-is had clearly come from outside our solar system. Loeb is saying that the Oumuamua doesn't exhibit the type of characteristics seen in other comets and asteroids.
That shape would allow solar radiation to push the vessel along and explains the object's unusual acceleration.
Arsenal boss Emery upset for Welbeck after 'big injury'
Arsenal fans and spectators have also taken to social media as they reacted to the painful injury suffered by the Gunners' winger. The 27-year-old has overcome serious issues in the past, missing large chunks of his career with knee problems.
Comets, in particular, are known to speed-up due to a process known as "outgassing", in which the sun heats up the surface of the icy comet, releasing melted gas.
Multiple telescopes focused on the object for three nights to determine what it was before it moved out of sight.
Of course, the pair aren't claiming that Oumuamua's definitely of alien origin. SETI, the Search for Extraterrestrial Intelligence, tried to detect signals from the object, but found nothing.
"This is the only other explanation we could come up with", said Avi Loeb, chair of Harvard's department of astronomy.
But Harvard's research team says they're not giving up hope that it's a sign of alien life: they "follow the maxim of Sherlock Holmes: When you have excluded the impossible, whatever remains, however improbable, must be the truth".
"The likelihood of Galactic panspermia is strongly dependent upon the survival lifetime of the putative organisms as well as the velocity of the transporter", Manasvi Lingam and Loeb from this current study said in another paper published previously in the Astrophysical Journal.
He said it is not unusual for Devlin to release juvenile defendants if they have adequate supervision at home . Harris County prosecutors expressed concerns after Judge Glenn Devlin made the decision Wednesday in Houston .
About 6pm , Victoria Police Superintendent David Clayton holds a press conference just metres from where the incident unfolded. A handful of videos and images uploaded to social media appear to show the man attempting to stab police before he is shot.
Whitaker wrote. "If he doesn't, then Mueller's investigation will eventually start to look like a political fishing expedition". The new acting attorney general, Matthew Whitaker , has a vendetta against those climate investigations into ExxonMobil.
It is a big victory for us, not just because we needed the points but because it was away from home against an fantastic team. City are two points clear of Chelsea atop the table and nine better off than United ahead of the derby.
Veronica Escobar and Sylvia Garcia won House races in Texas, making them the first Latina women to ever represent the state. Sharice Davids defeated a Republican incumbent in Kansas to become the first openly LGBTQ woman to represent Kansas.
A Fly Jamaica Boeing 757-200 aircraft overshot the runway at Guyana's main global airport early Friday, injuring several people. The Boeing 757-200, registered as N524AT, overran the end of the runway and crossed through the airport perimeter fence.
United Technologies Corp. supplies the angle-of-attack sensors and indicator for the 737 Max, according to Airframers.net. But he said search teams from the military, police and others would stand down, leaving just his agency to press on.
Footage from the scene shows a man swinging a knife at two uniformed officers near a burning auto before he was shot. Police were forced to shoot the man, who continually made stabbing gestures at them, near a burning vehicle .
Pender County Schools said in a statement, "There has been a reported active shooter situation at Topsail high School". A parent told WWAY the school district announced that all schools on the eastern side of Pender County are on lockdown.
Paramedics said they assessed three people at the scene, one with a neck injury: "They are in a suspected critical condition". He's in a critical condition. "At the same time, passers-by were calling out that members of the public had been stabbed".
Honea says resources are spread thin, but officials are "doing everything we can to get people out of the affected areas". As they've already done multiple times this year, KRCR-TV in Redding has switched over to full live fire coverage.
Liverpool legend Souness blames Klopp for Red Star shock
Hans Vanaken scored twice for the Belgian team, Brazilian forward Wesley made it 3-0 and captain Ruud Vormer completed the rout. If Liverpool beat PSG, and Red Star draw with Napoli then Liverpool can lose to Napoli in the final game and still go through.
Niantic reboots Ingress, out now on Android and iOS
Shiny Ponytas and Cubones are now spawning in the wild at a slightly higher rate than usual and will likely not appear in eggs. It certainly feels like this could be added to Pokmon Go properly in the near future.
Breaking down Le'Veon Bell's latest cryptic tweet
Bell has been working out in Miami this season, but on Monday he tweeted "Fairwell Miami" without further explanation. Bell has missed out on $8.52 million this season but is hoping to preserve his health for a long-term contract.
13 dead including gunman in shooting at California bar
Long was armed with a Glock 21, a.45-caliber pistol created to hold 10 rounds plus one in the chamber, according to the sheriff. Speaking at press conference in the wee hours of Thursday, a sheriff said that around a dozen other people had been injured.
Red Dead Redemption 2: How to Fix the Missing Camp Bug
Red Dead Redemption 2 may not be flawless , but its minor shortcomings are like tiny blemishes on a stunningly attractive face. Other users said: "Why can't we do this in real life?" and "I was on the fence about this game, now I know I have to buy it".
USA exempts India-backed port in Iran from sanctions
The granting of the waivers and pledges from Saudi Arabia to fill any supply gaps has since led oil prices to hover $75 a barrel. The Trump administration pushed governments to reduce Iranian oil imports to zero with related sanctions.