Galactic bar paradox resolved in cosmic dance

New light has been shed on a mysterious and long-standing conundrum at the very heart of our galaxy. The new work offers a potential solution to the so-called "Galactic bar paradox," whereby different observations produce ...

Capturing the onset of galaxy rotation in the early universe

As telescopes have become more advanced and powerful, astronomers have been able to detect more and more distant galaxies. These are some of the earliest galaxies to form in our universe that began to recede away from us ...

Scientists design superfast molecular motor

Light-driven molecular motors have been around for over 20 years. These motors typically take microseconds to nanoseconds for one revolution. Thomas Jansen, associate professor of physics at the University of Groningen, and ...

Vela Pulsar

(Phys.org)—This movie from NASA's Chandra X-ray Observatory shows a fast moving jet of particles produced by a rapidly rotating neutron star, and may provide new insight into the nature of some of the densest matter in ...

Higher energy yield with torque vectoring gears

Wind turbines have a problem: Depending on the wind's force, the rotational speed of the turbine and thus of the generator changes. However, alternating current must be fed into the grid with precisely 50 (or 60) hertz. Typically ...

Bluetooth-enabled bicycle has automatic gearbox

(Phys.org)—Oh, no. Not another reason to count your smartphone blessings? To feel so lucky to have a phone loaded with accelerometer and GPS? Oh, yes. Engineers at UK-based Cambridge Consultants have developed electronic ...

Could the asteroid Ryugu be a remnant of an extinct comet?

Asteroids hold many clues about the formation and evolution of planets and their satellites. Understanding their history can, therefore, reveal much about our solar system. While observations made from a distance using electromagnetic ...

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