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A large crack, stretching several kilometres, made a sudden appearance recently in south-western Kenya.The tear, which continues to grow, caused part of the Nairobi-Narok highway to collapse and was accompanied by seismic activity in the area.The Earth is an ever-changing planet, even though in some respects change might be almost unnoticeable to us. Plate tectonics is a good example of this. But every now and again something dramatic happens and leads to renewed questions about the African continent splitting in two.The Earth's lithosphere (formed by the crust and the upper part of the mantle) is broken up into a number of tectonic plates.These plates are not static, but move relative to each other at varying speeds, "gliding" over a viscous asthenosphere.Exactly what mechanism or mechanisms are behind their movement is still debated, but are likely to include convection currents within the asthenosphere and the forces generated at the boundaries between plates.These forces do not simply move the plates around, they can also cause plates to rupture, forming a rift and potentially leading to the creation of new plate boundaries. The East African Rift system is an example of where this is currently happening.The East African Rift Valley stretches over 3,000km from the Gulf of Aden in the north towards Zimbabwe in the south, splitting the African plate into two unequal parts: the Somali and Nubian plates.Activity along the eastern branch of the rift valley, running along Ethiopia, Kenya and Tanzania, became evident when the large crack suddenly appeared in south-western Kenya. 1624

A final analysis of a COVID-19 vaccine candidate produced by Pfizer and BioNTech shows that the drug is 95% effective in preventing the coronavirus, and the companies say they hope to apply for Emergency Use Authorization within "days," the company reported Wednesday.The announcement is an improvement from an initial analysis released by the company just over a week ago that showed the drug to be 90% effective. Those results were released when it had been confirmed that 94 participants in the trial who received a shot had contracted COVID-19, and only 10% of those participants who contracted the virus had actually received the vaccine. Updated information now shows that 170 people who participated in the trial have contracted COVID-19, which crosses the threshold for final analysis. Of those participants, 162 received a placebo shot. Of the 20,000 participants who received the vaccine, just one has developed a severe case of COVID-19. The other seven people who received the vaccine and caught the virus are only experiencing mild symptoms.Pfizer also added that the vaccine has proven to be 94% efficient in older people — a welcome sign, given that the virus tends to present more severe symptoms in elderly patients.Pfizer's trial included about 40,000 participants, half of which received the vaccine, and the other half which received the placebo. The vaccine requires two shots, which need to be taken 28 days apart.The company added that there have been no safety concerns with the vaccine. In a randomized survey of 8,000 participants, only 2% reported suffering severe fatigue, and only 4% reported suffering severe headaches. Those who say they suffered side effects only experienced them briefly after vaccination.Wednesday's announcement means Pfizer is on track to shatter records for vaccine development, a process that typically takes several years.Pfizer and BioNTech already have their vaccine candidate in production, meaning it will be ready for distribution as soon as the Food and Drug Administration grants Emergency Use Authorization.Pfizer's announcement comes days after an initial analysis of a Moderna-produced vaccine was also shown to be 95% effective. Several other companies also have a COVID-19 vaccine in the works, something that health officials say is important for logistics and safety. 2347

A family has closure on Memorial Day after a missing World War II bomber lost at sea nearly 75 years ago. was discovered near Papua New Guinea thanks to a Scripps Oceanographer and his team.Scott Althaus keeps a replica of the B-24 bomber which became the final resting place for his cousin during World War II."This was done by a professional model builder in Camarillo," Althaus said via Skype from Illinois.Lt. Tom Kelly was the bombardier on the crew "Heaven Can Wait." They were part of the famous squadron known as the "Jolly Rogers."On March 11, 1944, while on a mission to bomb Japanese anti-aircraft batteries around Hansa bay in the South Pacific, the 11 person crew was shot down by enemy fire."My family had been involved in what was then a four-year research project," Althaus said.They gave that research to Project Recover. The group of marine scientists, archeologists, and historians went to work using science and advanced technology to find missing aircraft with servicemen still onboard."It's really easy to look on a map and say, 'hey, x marks the spot.' And it turns out that x could be several square miles,'" said Eric Terrill, Co-Founder of Project Recover and a Scripps OceanographerIn October 2017, Terrill and his team set out on a three-week expedition.  "These robots allow us to do very detailed surveys of the seabed using scanning sonar," he said.After 11 days on the water covering roughly six thousand acres and talking to fishermen, they found the wreckage."It was a mixture of elation and sadness," he said. "It's very humbling knowing this is really a grave site of historical importance."Althaus' cousin was no longer just a name and a face in black and white."For the first time in 74 years, we've seen what his grave looks like and that is a priceless gift," Althaus said.Today, there are still more than 72,000 missing U.S. service members from WWII. "There are stories like this all around the country of an uncle or a father or a grandfather that never returned home," Terrill said. "It's remarkable to think that [families] carry this loss for that many decades and then to actually see it play out is just amazing."Lieutenant Kelly's family has already been in contact with the families of seven other crew members on the plane. They're hoping the military will recover the remains from the wreckage. 2379

A first grader at Latta Elementary School in Ada, Oklahoma was very excited when she realized one of her textbooks appears to have belonged to country singer and "The Voice" judge Blake Shelton.While it may have seemed like a cool coincidence to Marley Parker, her mother and former educator Shelly Bryan Parker had a different take on the 1980 textbook."Marley is EXCITED that her 'new' reader belonged to Blake Shelton, but I am EMBARRASSED!!!! I'm 40 and these people are my age!!" Parker posted on Facebook.Shelton, 41, who has publicly talked about his hometown of Ada, appears to have printed his name on the front of the textbook in 1982. Latta school district's superintendent Cliff Johnson confirmed to CNN that Blake Shelton attended Latta Public School "in his younger years" of education, but graduated from a different school.Parker told CNN that the book, "Look Away (Keys to Reading)" by Louise Matteoni, is very educational and still in good shape."My daughter's teacher is an amazing educator, and I'm certain that if she had a way to obtain books that are not 40 years old, she would."Parker didn't intend for the photo to get as much attention as it did, but hopes it brings more awareness to the current situation Oklahoma's educators are facing."I just want the state to come to a resolution that will fully support teachers and their classrooms. As a former educator, this is very important to me. But as a parent, this is crucial as I want the best education for my daughter," Parker says.Hundreds of teachers in Oklahoma on Thursday packed the state Capitol on the fifth consecutive day of a walkout to protest for more funding, asserting that facilities, equipment and textbooks in their schools are run-down, outdated or in short supply.CNN has reached out to Blake Shelton for comment.The-CNN-Wire 1832

A letter that's being circulated on Capitol Hill reveals multiple incoming freshmen -- who were largely noncommittal on the House speaker race during their campaigns --- will in fact support Nancy Pelosi.The letter, obtained by CNN, is still being circulated and so far includes 61 signatures from women incumbents and members-elect. It comes as Pelosi is shoring up support from the progressive base this week with endorsements from large and powerful groups, as well as prominent progressives in Congress — a move that will put pressure on wayward Democrats to back her bid.MoveOn, Indivisible and Tax March were among the progressive groups that threw their support behind Pelosi on Thursday and Friday, soon after she met with the Congressional Progressive Caucus. All told, 34 outside groups have backed the California Democrat. Also this week, a group of 100 LGBTQ advocates and leaders endorsed Pelosi in a letter.Rep. Pramila Jayapal, a co-chair of the progressive caucus along with Rep. Mark Pocan, earlier this week would not say whom she's supporting, but she is listed on the women's letter in support of Pelosi.Also on the letter are members-elect like Angie Craig of Minnesota, Ilhan Omar of Minnesota, Dr. Kim Schrier of Washington state, Lori Trahan of Massachusetts, and Jennifer Wexton of Virginia.Below are all the freshmen on the list: 1388