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First Ever Double-Slit Experiment Performed with Antimatter

Positrons traverse two circular 2-mm-wide collimators 10.2 cm apart. The interferometer is composed of two SiN diffraction gratings with periodicity d1 and d2, respectively, separated by L1 = (118.1 ± 0.2) mm. Interference fringes with d3 periodicity are expected at L2 = (576 ± 5) mm. The emulsion is tilted so that the Y axis in the reference frame of the emulsion surface (X, Y) forms a 45° angle with the y axis of the laboratory. Gamma rays (511 keV) from positron annihilation in the emulsion are monitored with a high-purity germanium (HpGe) detector for rate measurement.

Courtesy of ScienceMag.org

82-Year-Old Woman With Dementia Gets Her Memory Back After Changing Her Diet

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Recently, an 82-year-old woman who suffered from dementia, who couldn’t recognize her own son has miraculously got her memory back after changing her diet.

When his mother’s condition became so severe that for her own safety she had to be kept in the hospital, Mark Hatzer almost came to terms with losing another parent.

NASA engineer invents physics-breaking new space engine

Star Trek’s Montgomery Scott famously said “ye cannot change the laws of physics”, but a real-life space engineer says he might have just done that.

David Burns of NASA’s Marshall Space Flight Center in Alabama has unveiled what he’s calling the ‘helical engine’, which could potentially power flights across space without using any fuel at all.

There’s just one small problem — it breaks the laws of physics as we know them.

Study finds method to diagnose Lyme disease within 15 minutes

Researchers have developed a new treatment method capable of detecting Lyme disease in just 15 minutes.

Caused by Borrelia burgdorferi and transmitted by the bite of infected Ixodes ticks, Lyme disease if left untreated can cause serious neurologic, cardiac, and/or rheumatologic complications.

“Our findings are the first to demonstrate that Lyme disease diagnosis can be carried out in a microfluidic format that can provide rapid quantitative results,” said Sam Sia, professor of biomedical engineering at Columbia Engineering.

Black holes might not crush you after all—they could be even weirder than that

Just when you thought one of the most bizarre things in space was something that eats massive amounts of light and energy and would probably shred you with its gravitational forces, what if it was something even harder to imagine?

Black holes are supposed to have a singularity—a point that is so small and dense we can’t even fathom it—in the middle of all that swirling light and gas. But what if at least some cosmic phenomena that look like black holes are actually cosmic objects full of dark energy? That is what astrophysicists Kevin Croker and Joel Weiner of the University of Hawai’i at Manoa recently published in a study in The Astrophysical Journal that tries to prove these hypothetical Generic Objects of Dark Energy (GEODEs) exist.

Tonight will be the darkest night of the past 500 years

Thanks to a lunar eclipse on the longest night of the year, tonight we’ll be experiencing the longest, darkest night in a very long time. It’s been nearly 500 years since the last solstice lunar eclipse. Here’s what you’ll see.

Eclipse photo by Chris Hondros/Getty.

NYU science journalism professor John Rennie explains what you’re likely to see in the wee hours of the morning: