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Astronomers looking at the atmosphere in neighboring Venus see something that might just be a sign of life.In a study published Monday, researchers from Cardiff University, MIT and elsewhere say they found the chemical signature of a noxious gas called phosphine.On Earth, phosphine is associated with life. It's found at the bottom of ponds, in badger guts and in penguin guano.Venus’ phosphine was observed in a narrow, temperate band within the planet’s atmospheres, where temperatures range from 30 to 200 degrees Fahrenheit. Scientists have speculated that if life exists on Venus, this layer of the atmosphere, or cloud deck, is likely the only place where it would survive, according to MIT.“This phosphine signal is perfectly positioned where others have conjectured the area could be habitable,” said the study’s co-author and EAPS Research Scientist Janusz Petkowski.Astronomers tried to figure out other, non-biological ways it could be produced and came up empty.“It’s very hard to prove a negative,” said Clara Sousa-Silva, research scientist in MIT’s Department of Earth, Atmospheric and Planetary Sciences (EAPS). “Now, astronomers will think of all the ways to justify phosphine without life, and I welcome that. Please do, because we are at the end of our possibilities to show abiotic processes that can make phosphine.”Outside experts — and the study authors themselves — say the research is tantalizing but not yet convincing. 1454

AURORA, Colo. – Hundreds of people are expected to gather Friday evening to demand that three officers involved in the in-custody death of Elijah McClain be fired by the Aurora Police Department.“For ten months Aurora Police Department has shielded Elijah McClain's murderers on their force from facing any form of justice. It was only last Friday, just ahead of a mass march for Elijah, that they pulled the three killers off the streets and put them on paid desk duty,” the Party for Socialism and Liberation – Denver (PSL) said in a statement about the event. “We need to make it clear that this is absolutely NOT enough.”Last Friday, APD announced officers Nathan Woodyard, Jason Rosenblatt and Randy Roedema had been taken off street duty "because of threats and harassment," according to a police spokesperson. Police said those threats involved phone calls as well as email messages.Officials did not disclose to which department the officers were reassigned, but said they were working in a "non-enforcement capacity."The PSL says they expect murder charges “for the three killers” and demand that APD fire all three “IMMEDIATELY.”Organizers of Friday’s protest are also calling for the release of the names — as well as the immediate termination — of all officers involved in an incident involving a photograph taken near the site where McClain struggled with officers. The officers were seen in the picture imitating the carotid hold used on McClain before the 23-year-old Black man died last August.RELATED: Officer who was depicted in photograph at site of Elijah McClain's arrest has resignedThe rally will start at 6 p.m. at the intersection of Billings St. and Evergreen Avenue, the site where organizers say, “Elijah was brutalized and killed and where APD danced on his grave.” From there, protesters will march to the APD headquarters at the Aurora Municipal Center.The march and protest will put APD’s response to test once again, following a violent night of confrontation between officers and protesters last Saturday.MORE: Aurora Police Interim Chief defends police response to Elijah McClain protestOrganizers say there will be people of all ages at Friday’s protest, “who do not want a repeat of last Saturday’s violence from APD, but (who) will not be intimidated out of exercising their First Amendment right to assemble and voice their concerns.”McClain’s death, largely unnoticed for the past 10 months, recently garnered national media attention following nationwide calls to reform interactions between police and Black Americans in the wake of George Floyd’s death.On Tuesday, the Colorado U.S. Attorney's Office, along with several other law enforcement agencies, announced they've been reviewing facts in the death of the 23-year-old Black man since last year for a potential federal civil rights investigation, saying they were aware of the photo allegations which surfaced Monday evening and were gathering further information about the incident.This story was originally published by óscar Contreras on KMGH in Denver. 3062

Authorities will begin distributing an experimental Ebola vaccine in Mbandaka, a major city in the Democratic Republic of Congo, on Monday to try to stop the spread of the deadly virus.Healthcare workers in Mbandaka, the capital of Equateur Province and home to 1.2 million people, will be the first to receive the vaccine, World Health Organization spokesman Tarik Ja?arevi? said.The confirmation of the first case in Mbandaka last week has raised concerns that the virus could spread faster than expected. So far, 26 people have died in the outbreak, according to the WHO.The vaccine, called rVSV-ZEBOV, will likely be distributed to some 8,000 to 10,000 people in its first phase, Peter Salama, deputy director-general of emergency preparedness and response at the WHO, said Friday.It will be given to people who have had contact with people infected with Ebola and contacts of those contacts, Salama said.Ebola is an incredibly contagious virus which causes the sudden onset of symptoms including fever, fatigue and muscle pain within two to 21 days after infection. Patients suffer vomiting, rash and diarrhea, impaired kidney and liver function -- and in some cases internal and external bleeding.An outbreak in 2014 in West Africa killed more than 11,000 people in months. 1287

Authorities have removed 23 passengers from a Carnival Cruise Line ship in Australia after a series of brawls, New South Wales police and Carnival said in statements.Cellphone video from the ship shows passengers tussling with each other, and with security officers, outside a nightclub and by a swimming pool amid shouting and screams from alarmed onlookers.Carnival said police on Friday removed "a large family group who had been involved in disruptive acts aboard Carnival Legend. Our security team responded in several instances to extremely unruly behavior by these guests. One particular altercation in the nightclub began when the group physically attacked other guests."Police said they were told several men fought in the early morning hours Friday while the ship was about 220 kilometers (137 miles) off Jervis Bay. Security officers on the ship intervened and detained the men before notifying police, police said.  940

At least 14 people were sent to the hospital Saturday after a storm knocked over concert entrance trusses at an Oklahoma outdoor concert venue hosting the Backstreet Boys and 98 Degrees, a spokeswoman for the property owner said.The staff at the venue had begun evacuating fans after lightning was spotted, Kym Koch Thompson, a spokeswoman for WinStar World Casino and Resort, said.But about 150 people in line "did not heed staff's warnings."Thompson said the area was pounded by heavy rain and winds as strong as 80 mph. 530