WASHINGTON/ALMATY (Reuters) – A Russian Soyuz spacecraft carrying a U.S. astronaut and two Russian cosmonauts blasted off from the Baikonur cosmodrome in Kazakhstan on Wednesday and successfully reached orbit, live footage broadcast by Russia’s space agency Roscosmos showed.
The crew members travelling to the International Space Station (ISS) are Kate Rubins, a NASA microbiologist who in 2016 became the first person to sequence DNA in space, and Russian cosmonauts Sergey Ryzhikov and Sergey Kud-Sverchkov.
The mission is the last scheduled Russian flight carrying a U.S. crew member.
Since the space shuttle program ended in 2011, NASA has relied on Russia to ferry its astronauts to the space station, an orbiting laboratory 250 miles above Earth that has housed international crews of astronauts continuously for nearly 20 years.
The U.S. space agency in 2014 contracted Elon Musk’s SpaceX and Boeing Co
to build competing space
On August 4, about 2,750 tons of ammonium nitrate exploded in the port of Lebanon’s capital, Beirut. Now, new research gives a clearer picture of the size of the blast, George Dvorsky reports for Gizmodo.
The explosion’s force makes it the sixth-largest accidental, non-nuclear explosion in history, reports Gizmodo. The largest ever accidental explosion occurred in 1917, when two ships—one carrying TNT and other explosives—collided near Halifax, Nova Scotia. The blast killed about 1,800 people and shattered windows 50 miles away. The largest non-nuclear, human-caused intentional explosion was a mock-up test of future nuclear blasts. Dubbed “Minor Scale,” the test blast had the power of about 3,500 tons of TNT, per BBC News’ Jonathan Amos and Paul Rincon.
The blast shattered windows around the capital, destroyed three neighborhoods, killed about 200 people and injured thousands more. Engineering researchers at the University of Sheffield estimate that the explosion had
By analyzing videos uploaded to social media, scientists have calculated the strength of the blast that devastated the city of Beirut in August, finding it to be among the biggest non-nuclear explosions in human history.
When a warehouse at the Port of Beirut in Lebanon exploded this past summer, it released the equivalent of 500 tons of TNT and possibly as much as 1.12 kilotons of TNT, according to new research published in the scientific journal Shock Waves. That’s somewhere between 3% and 7% of the yield produced by the atomic bomb detonated at Hiroshima, which packed a blast yield equal to 15 kilotons of TNT. Accordingly, the explosion in Beirut now ranks among the 10 biggest accidental non-nuclear explosions of all time.
Around 2,750 tons of ammonium nitrate stored at Beirut’s port
Photos Show Why Miami Public Schools Could Be the Next Ron DeSantis Coronavirus Debacle
MIAMI—Last week, a few days before Donald Trump revealed he came down with COVID-19, Karla Hernandez-Mats went on a coronavirus safety fact-finding mission in South Florida schools ahead of their reopening on Monday.The president of United Teachers of Dade, the local teachers union, Hernandez-Mats said she and her colleagues conducted surprise inspection visits at 17 Miami-area schools that suggested administrators were still scrambling to put safety measures in place.At Miami Springs Senior High, one of the 17 schools inspected, administrators initially refused to allow her colleague, United Teachers of Dade First Vice-President Antonio White, to enter the building and called a police resource officer on him, the union officials told The Daily Beast.“When administrators act like that, their schools are usually not prepared,” White said in an interview. “That was the case at
The blast that devastated large parts of Beirut in August was one of the biggest non-nuclear explosions in history, experts say.
The Sheffield University, UK, team says a best estimate for the yield is 500 tons of TNT equivalent, with a reasonable upper limit of 1.1 kilotons.
This puts it at around one-twentieth of the size of the atomic bomb dropped on Hiroshima, Japan, in 1945.
The team mapped how the shockwave propagated through the city.
The group hopes its work can help emergency planners prepare for future disasters.
“When we know what the yield is from these sorts of events, we can then work out the loading that comes from that. And that tells us how to construct buildings that are more resilient,” said Dr Sam Rigby from Sheffield’s Blast and Impact Engineering Research Group.