Researchers have built a modern-day Enigma machine that relies on the quirky laws of quantum mechanics instead of the rotors and levers of the famous World War II–era code machines. It’s the first experiment to show that it’s possible to send large amounts of secure quantum data protected by a much shorter secret key...
\Bloo werl\ n.
A swirling flame that appears in fuel floating on the surface of water and glows blue.
An unfortunate mix of electricity and bourbon has led to a new discovery. After lightning hit a Jim Beam...
There’s a new equation floating around the world of physics these days that would make Einstein proud.
It’s pretty easy to remember: ER=EPR.
You might suspect that to make this equation work, P must be equal to 1. But the symbols in this equation stand not for numbers, but for names. E, you probably guessed, stands for Einstein. R and P are initials — for collaborators on two of...
These orderly patterns of dark blue dots indicate where individual chlorine atoms are missing from an otherwise regular grid of atoms. Scientists manipulated these vacancies to create a supersmall data storage device.
The locations of vacancies encode bits of information in the device, which Sander...
News in Brief
Before the demise of Japan’s latest X-ray satellite, Hitomi, the probe might have put to rest speculation about radiation from dark matter in a cache of galaxies.
In 2014 astronomers reported that several galaxy clusters appeared to inexplicably produce X-ray photons ...
Letters to the Editor
It’s all relative
In “Earth is young at heart” (SN: 6/25/16, p. 5), Emily Conover reported that Earth’s core is more...
In a few highly specialized laboratories, scientists bombard matter with the world’s most powerful electrical pulses or zap it with sophisticated lasers. Other labs squeeze heavy-duty diamonds together hard enough to crack them.
All this is in pursuit of a priceless metal. It’s not gold, silver or platinum. The scientists’ quarry is hydrogen in its most elusive of forms.
The world is on the verge of a water crisis.
Rainfall shifts caused by climate change plus the escalating water demands of a growing world population threaten society’s ability to meet its mounting needs. By 2025, the United Nations predicts, 2.4 billion people...
The black holes that produced the first detected gravitational waves may have exotic origins in the early universe.
When the Advanced Laser Interferometer Gravitational-Wave Observatory, LIGO, glimpsed gravitational waves from two merging black holes, scientists were surprised at how large the black holes were — about 30 times the mass of the sun (...
Portrait of a Woman by French impressionist Edgar Degas looks like it’s hiding something. Degas completed the work between 1878 and 1880, and as early as 1922, the faint outline of an earlier work started to creep through the thin oil paint.
Now researchers know what exactly lies beneath. Australian researchers used a synchrotron to scan the painting with radiation targeting...