Archive for the ‘science’ Category
As the world anxiously monitors the outbreak of Ebola in Democratic Republic of the Congo, health officials note that a measles outbreak declared last month in the country has killed more people—mostly children—and faster.
Since January 2019, officials have recorded over 100,000 measles cases in the DRC, mostly in children, and nearly 2,000 have died. The figures surpass those of the latest Ebola outbreak in the country, which has tallied not quite 2,500 cases and 1,665 deaths since August 2018. The totals were noted by World Health Organization Director-General, Tedros Adhanom Ghebreyesus, in a speech today, July 15, at the United Nations Office in Geneva, Switzerland.
"Frankly, I am embarrassed to talk only about Ebola," Dr. Tedros said (he goes by his first name). He gave the speech in response to two new developments in the Ebola outbreak. That is that two Ebola responders were murdered in their home in the DRC city of Beni, and that officials on Sunday had identified the first case of Ebola in Goma, a DRC city of over one million at the border with Rwanda.
On Monday, officials from SpaceX and NASA provided an update on the investigation of an anomaly that occurred in April, which destroyed a Crew Dragon spacecraft. Generally, they were upbeat with their assessment: "I'm pretty optimistic right now, because we have a good path forward," said Hans Koenigsmann, SpaceX's vice president of mission assurance.
After nearly three months of work—which has included the collection of debris from the ground-based incident, assessing large volumes of data, and a series of tests at SpaceX's rocket development facility in McGregor, Tex.—the company is about 80% complete with its analysis, Koenigsmann said. He characterized the findings discussed Monday as "preliminary."
The accident occurred during tests of the Crew Dragon's thruster systems in Florida. The capsule has "Draco" thrusters used to maneuver in space as well as powerful "SuperDracos." They would fire in the event of an emergency with the rocket to pull the crew safely away during a launch. Specifically, the April 20 anomaly occurred during the activation phase of the SuperDraco thruster system, when it is is pressurized and valves are opened and closed.