For the supermassive black hole at the center of our Milky Way galaxy, it's been a long time between dinners. NASA's Hubble Space Telescope has found that the black hole ate its last big meal about 6 million years ago, when ...
Astronomy
Mar 9, 2017
4
954
The bubbles that form on a heated surface create a tiny recoil when they leave it, like the kick from a gun firing blanks. Now researchers at the University of Illinois at Chicago, under funding from NASA, have shown how ...
General Physics
Mar 6, 2017
0
12
The Phoenix cluster is an enormous accumulation of about 1,000 galaxies, located 5.7 billion light years from Earth. At its center lies a massive galaxy, which appears to be spitting out stars at a rate of about 1,000 per ...
Astronomy
Feb 14, 2017
20
55
Nanorobots and other mini-vehicles might be able to perform important services in medicine one day – for example, by conducting remotely-controlled operations or transporting pharmaceutical agents to a desired location ...
General Physics
Feb 13, 2017
0
32
The quest to develop a wireless micro-robot for biomedical applications requires a small-scale "motor" that can be wirelessly powered through biological media. While magnetic fields can be used to power small robots wirelessly, ...
General Physics
Nov 22, 2016
0
22
When one type of an oxide structure called perovskite is exposed to both water vapor and streams of electrons, it exhibits behavior that researchers had never anticipated: The material gives off oxygen and begins oscillating, ...
Materials Science
Oct 3, 2016
1
7
Science fiction through the ages has inspired scientific discoveries, such as human flight, interplanetary travel or, in this case, a microscopic submarine than can navigate the bloodstream for medical reasons.
Engineering
Oct 3, 2016
0
15
The spinning rainbow surface of a soap bubble is more than mesmerizing – it's a lesson in fluid mechanics. Better understanding of these hypnotic flows could bring improvements in many areas, from longer lasting beer foam ...
Soft Matter
Sep 13, 2016
0
48
Small balloons made from one-atom-thick material graphene can withstand enormous pressures, much higher than those at the bottom of the deepest ocean, scientists at the University of Manchester report.
Nanomaterials
Aug 25, 2016
9
351
Scientists have shown the weird world of quantum mechanics operating in the molecule of life, DNA.
Cell & Microbiology
Jun 2, 2016
8
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