It will take the rover seven minutes to get from the Mars atmosphere to the planet's surface. But because it takes about twice that long for signals to travel from Mars to Earth, scientists won't know anything about the landing until after it's already over.
Pediatric leukemia is a cancer of the blood and bone marrow. There are about 3,000 new cases in the United States every year, typically in children between the ages of four and six.
With treatment, about three-quarters of affected children are able to beat the disease.
But for those with what’s known as “high risk” leukemia, the odds of survival are much worse.
Washington University pediatric oncologist Dr. Todd Druley has been trying to use genetics to understand why some leukemia is so hard to treat. He spoke with St. Louis Public Radio's Véronique LaCapra.
The associate director of Washington University in St. Louis' Genome Institute, George Weinstock, was one of this project's lead researchers. He says we have about ten times more microbial cells in our body than we have human cells.
He told our reporter Véronique LaCapra today:
“...there’s probably a hundred times or more microbial genes in our body than there are genes in our human genome,” Weinstock said. “So the microbes, they’re not just a small little part of us, they’re really a very, very large, perhaps almost dominant part of our body.”
The human body contains about 100 trillion cells, but only maybe one in 10 of those cells is actually human. The rest are from bacteria, viruses and other microorganisms. Now, scientists have unveiled the first survey the "human microbiome," which includes 10,000 species and more than 8 million genes.
The bacterium Enterococcus faecalis, which lives in the human gut, is just one type of microbe that was studied as part of the Human Microbiome Project funded by the National Institutes of Health (NIH).
Researchers have completed the first comprehensive census of the human “microbiome” — the trillions of bacteria, viruses, and other microorganisms that live in and on our bodies.
The associate director of Washington University’s Genome Institute, George Weinstock, was one of the project’s lead researchers. He says we have about ten times more microbial cells in our body than we have human cells.