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Eight amazing science stories of 2017

Eight amazing science stories of 2017

Science
It was a year of endings and beginnings: the plucky Cassini spacecraft's 13-year-long mission reached its finale, while the fledgling field of gravitational wave astronomy bagged the catastrophic collision of two dead stars.BBC News looks back on eight of the biggest science and environment stories of 2017.Star crashIn 2017, scientists detected Einstein's gravitational waves from a new source - the collision of two dead stars, or neutron stars. The first direct detection of these waves was announced in 2016, when the Advanced LIGO laboratories described the warping of space from the merger of two distant black holes. The result was hailed as the starting point for a new branch of astronomy, using gravitational waves to collect data about distant phenomena.Telescopes from all over the world...
Star system has record eight exoplanets

Star system has record eight exoplanets

Science
Nasa has found a distant star circled by eight planets, equal to the complement in our own Solar System.It's the largest number of worlds ever discovered in a planetary system outside our own.The star known as Kepler-90, is just a bit hotter and larger than the Sun; astronomers already knew of seven planets around it.The newly discovered world is small enough to be rocky, according to scientists."This makes Kepler-90 the first star to host as many planets as our own Solar System," said Christopher Shallue, a software engineer at Google, which contributed to the discovery.Star's seven Earth-sized worlds set recordEngineers from Google used a type of artificial intelligence called machine learning to find planets that were missed by previous searches. The discovery was based on observations ...
New York attack: Eight killed by man driving truck

New York attack: Eight killed by man driving truck

World
Media playback is unsupported on your deviceAt least eight people have been killed and 12 injured in New York after the driver of a truck mowed down people on a cycle path in Lower Manhattan.A 29-year-old man who emerged from the vehicle was shot by a police officer and arrested.US media named him as Sayfullo Saipov, an immigrant who came to the US in 2010.New York City Mayor Bill de Blasio said it was "cowardly act of terror aimed at innocent civilians".He added: "We know that this action was intended to break our spirit. But we also know that New Yorkers are strong, New Yorkers are resilient and our spirit will never be moved by an act of violence and an act meant to intimidate us."Live updates: New York attackMedia playback is unsupported on your deviceNew York Police Department (NYPD) ...
Irma: Eight dead at Florida nursing home left without power

Irma: Eight dead at Florida nursing home left without power

World
Media playback is unsupported on your deviceEight people at a Florida nursing home that was left without power for days after Hurricane Irma have died.Police evacuated 115 residents on Wednesday from the facility, whose air conditioning was cut by the storm.Broward County Mayor Barbara Sharief said three were found dead at the nursing home in the city of Hollywood. Five others died in hospital.Ten million people are still without power in Florida, Georgia and the Carolinas after Hurricane Irma.The storm - which has claimed more than two dozen lives in the US - struck southwestern Florida on Sunday morning as a category four hurricane before weakening to a tropical depression on Monday.Irma earlier left a trail of destruction in the Caribbean, where nearly 40 people were killed.Hollywood Po...
Canadian ex-nurse gets life in prison for killing eight elderly patients

Canadian ex-nurse gets life in prison for killing eight elderly patients

World
June 27 (UPI) -- A former nurse in Canada has been sentenced to life without parole for murdering eight seniors by injecting them with insulin for no medical purpose."I caused tremendous pain and suffering and death.... Sorry is much too small a word. I am extremely sorry," said Elizabeth Wettlaufer, 50, to an Ontario court.Wettlaufer pled guilty to eight first-degree murder charges, four counts of attempted murder and two counts of aggravated assault.Wettlaufer began her violent crime spree in 2007, when she injected two seniors, one 87 and the other 91, with insulin injections. Those first attempts did not kill the victims, but accounted for her two aggravated assault charges.Later that year, she got her first kill via lethal insulin injection, taking the life of 84-year-old James (Jim) ...