Dressgate left social media users scratching their heads in existential angst
Astronomers have known about these objects for decades, but in the depths of cosmic time, it’s hard to understand how they can grow so quickly — or maybe not!
Thanks to the painstaking research conducted by astronomers using the Hubble Space Telescope in the 1990s, the consensus is that virtually all large galaxies have at their centers massive black holes that formed over the course of billions of years. Our own galaxy, the Milky Way, has one of these massive beasts, whose mass is about 3 million times that of the Sun. The monster black hole at the center of the giant galaxy NGC 4889 has a mass that’s estimated to be 20 billion times that of the Sun. And this galaxy is right in our cosmic neighborhood, only about 300 million light-years from the Sun!
NGC 4889 (Credit: Sloan Digital Sky Survey)
Let me give you a better perspective on what a black hole looks like. The radius of a simple black hole (nonrotating) is about 2.8 kilometers for every solar mass it contains. This defines the radius of its event horizon. Once inside the event horizon, you are dead meat in a matter of a millisecond. You cannot escape the intense —> Read More Here
About 10 percent of patients with chronic lymphocytic leukemia discontinued therapy with the Bruton tyrosine kinase inhibitor drug ibrutinib because of disease progression during clinical trials, according to a new study. —> Read More Here
People with low self-esteem are more likely stay in unhappy relationships, suggests new research. Sufferers of low self-esteem tend not to voice relationship complaints with their partner because they fear rejection. —> Read More Here
New compounds protect nervous system from the structural damage characteristic of multiple sclerosis
A newly characterized group of pharmacological compounds block both the inflammation and nerve cell damage seen in mouse models of multiple sclerosis, according to a study. Multiple sclerosis is a disease of the brain and spinal cord, where for unknown reasons, the body’s immune system begins an inflammatory attack against myelin, the protective nerve coating that surrounds nerve fibers. Once myelin is stripped from these fibers, the nerve cells become highly susceptible to damage, which is believed to underlie their destruction, leading to the steady clinical decline seen in progressive forms of multiple sclerosis. —> Read More Here
The majority of hospitals participating in the American College of Surgeons National Surgical Quality Improvement Project improve surgical outcomes over time, and improvement continues with each year that hospitals participate in the program, according to a new study. —> Read More Here
Significant differences were found in hospital re-admissions, medication usage, and both medical and surgical complications of children with Crohn’s disease related to race. In the study, black children had a 1.5 times higher frequency of hospital re-admissions because of Crohn’s disease compared to white children. —> Read More Here
Can’t move on from a break up? Brain scans reveal why people with depression find it harder to shake off rejection
Researchers at Michigan University found that the pain of rejection lasts longer because the brain cells of people with depression release less of stress-relieving natural opioids. —> Read More Here
Camera accidentally captures 570 megapixel image of a COMET: Stunning shot of Lovejoy shocks scientists hunting for dark energy
At the time this image was taken, the comet was passing about 51 million miles (82 million km) from Earth. It was captured by the Dark Energy Camera, the world’s most powerful digital camera. —> Read More Here
Scientists have captured the first detailed microscopy images of ultra-small bacteria that are believed to be about as small as life can get. The existence of ultra-small bacteria has been debated for two decades, but there hasn’t been a comprehensive electron microscopy and DNA-based description of the microbes until now. The cells have an average volume of 0.009 cubic microns (one micron is one millionth of a meter). About 150 of these bacteria could fit inside an Escherichia coli cell and more than 150,000 cells could fit onto the tip of a human hair. —> Read More Here