Twenty years of retreat ranked Jakobshavn as one of Earth’s ticking timebombs for climate change, as its ice melt could contribute to catastrophic global sea level rise. Jakobshavn, which is Greenland’s largest glacier and covers roughly 110,000 square kilometers, had been retreating 1.8 miles and thinning 130 feet per year as of 2012, NBC News reported. Greenland’s ice sheet is the world’s largest contributor to sea level rise, losing 270 billion tons of ice each year, primarily due to climate change.

If the gel makes it to market, it will become the first hormonal contraceptive for men—more than a half-century after the first birth control pill was approved for women. Now the researchers just need to study how it works with Medrano and the other couples in the wild, hoping to prove that hormonal male birth control finally deserves to move out of the lab and into men’s lives. Now a professor at the University of Washington, Page oversees three studies of new contraceptive methods for men: a hormonal pill, which suppresses sperm production with a compound called DMU; an injection, modeled after the Depo-Provera shot for women; and the NES/T gel, which uses a type of progestin called nesterone in concert with testosterone.

On paper , this experiment is a simple case of mixing blood with magnesium fluoride. Supposedly, if you mix those two things in a container, this is what you get:

The only problem is I cannot verify that anything mixed with magnesium fluoride will yield this result, let alone blood. The commenters on this tweet are just as skeptical:

While there are videos online of blood and hydrogen peroxide doing some wild stuff, like this one from YouTuber CrazyRussianHacker:

… our best guess is that the original video we’re hung up on is *not* blood and magnesium fluoride, but rather the simple and familiar (but still very cool) elephant toothpaste experiment:

Just make hydrogen peroxide and dish soap look like blood with some dark red/brown food coloring, add some potassium iodide and violà, black magic.

— Dr. Alan Grant, Jurassic Park

The idea that T. rex was a mere scavenger, rather than a majestic super-predator, was first introduced by a paleontologist named Lambe in 1917, but the debate really only heated up in the 1990s when paleontologist Jack Horner (the real-life inspiration for the character of Dr. Alan Grant) popularized the idea. Still, if you’re like me and you’ve had quite enough sweetness for one T. rex article, please enjoy this video of the Barney balloon being torn to shreds by the wind in the 1997 Macy’s Parade (presented with my personal apologies to Mr. West):

“What if Andy gets another dinosaur? In what’s easily the worst of the original Jurassic Park films, the T. rex is quickly dispatched by the much bigger Spinosaurus inside of one minute, by snapping the T. rex’s neck.

Researchers at the CDC estimated that handling 107 cases of measles that occurred in 2011 cost state and local health departments between $2.7 million and $5.3 million. “There are substantial public health responses that go into mitigating an outbreak, and we should pursue those, because they prevent larger outbreaks or broader social disruption,” says Saad Omer, a physician and epidemiologist at Emory University and the senior author of a recent paper on the “true cost” of measles outbreaks. The state health department was forced to appropriate a portion of its poison control center’s work hours to handle the calls made by people worried they had been exposed to measles.

But like the Great Red Spot, the dark vortices on Neptune emerge in areas of high pressure, whereas storms on Earth form in areas of low pressure. Amy Simon, a scientist at NASA’s Goddard Space Flight Center who leads the OPAL mission, along with Michael Wong and Andrew Hsu from the University of California Berkeley, were studying Hubble images of Neptune’s prior dark vortex, which emerged in 2015, when they noticed small, bright clouds in the area where the 2018 spot would eventually emerge. Writing in the new Geophysical Research Letters paper, Simon and her colleagues said the associated clouds appeared at the same location about two years before the new dark spot emerged—an important clue suggesting the storms originate much deeper within the planet’s atmosphere than is typically assumed.

While around 6% of women giving birth all over the world — in rich and poor countries alike — develop postpartum hemorrhage, 99% of deaths from it occur in low- and middle-income countries. In March 2010, Shakur-Still and Roberts launched the WOMAN (World Maternal Antifibrinolytic) trial, working in 21 countries to test whether tranexamic acid might similarly reduce deaths from postpartum hemorrhage. The double-blinded trial enrolled 20,000 women with postpartum hemorrhage, randomly assigning them to receive either 1 gram of intravenous tranexamic acid, or a matching placebo, in addition to usual care — which would typically consist of uterine massage, one or more of the drugs aimed at helping the uterus contract, or surgery.

More importantly, it puts the health of children front-and-center in the fight between public health advocates and the makers of sugary drinks, giving the argument a new sense of urgency. The answer, the groups say, involves a suite of approaches designed to stem soda consumption and reduce overall sugar intake, including:
Asking local, state, and federal policymakers to consider adopting excise taxes on sugary beverages. Creating federal and state health policies aimed at reining in the marketing of sugary drinks to children.

A Moiré pattern in twisted bilayer graphene.Image: NIST
Just a year ago, scientists presented results that seemed almost too good to be true: Carbon sheets only a single atom thick, called graphene, took on a pair of important physical properties when they were twisted at just the right “magic” angle relative to one another. “Fields that were relatively connected before are now joined studying this one type of material,” Pablo Jarillo-Herrero, MIT professor of physics and principal investigator behind last year’s twisted graphene papers, told Gizmodo. Jarillo-Herrero explained that it combines already-flourishing fields of physics, including those that study graphene and other two-dimensional materials, topological properties (characteristics that don’t change despite certain physical transformations), super-cold matter, and unusual electronic behaviors that come about from the way electrons are distributed in certain materials.

The story of the diamondback moth appealed to Gatenby as a useful metaphor for his own project—one concerned not with crops but with cancer. Just as ecologists allow for a manageable population of diamondback moths to exist, Gatenby’s method would permit cancer to remain in the body as long as it doesn’t spread further. Nowell suggested—and later research confirmed—that certain DNA alterations grant cancer cells resistance against chemotherapy or other treatments, causing them to edge out drug-­sensitive cells through a process of natural selection.