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Category: space – Page 294

Smoking-gun evidence for modified gravity at low acceleration from Gaia observations of wide binary stars

A new study reports conclusive evidence for the breakdown of standard gravity in the low acceleration limit from a verifiable analysis of the orbital motions of long-period, widely separated, binary stars, usually referred to as wide binaries in astronomy and astrophysics.

The study carried out by Kyu-Hyun Chae, professor of physics and astronomy at Sejong University in Seoul, used up to 26,500 wide binaries within 650 (LY) observed by European Space Agency’s Gaia space telescope. The study was published in the 1 August 2023 issue of the Astrophysical Journal.

For a key improvement over other studies Chae’s study focused on calculating gravitational accelerations experienced by as a function of their separation or, equivalently the orbital period, by a Monte Carlo deprojection of observed sky-projected motions to the three-dimensional space.

Webb telescope captures iconic Ring Nebula in unprecedented detail

(CNN) — Astronomers have used the James Webb Space Telescope for a fresh perspective of an iconic celestial favorite called the Ring Nebula.

The new image captures never-before-seen details within the colorful nebula, located in the Lyra constellation about 2,600 light-years from Earth.

The structure of the Ring Nebula can be glimpsed through amateur telescopes and has been observed and studied for years.

D-Wave and Davidson Technologies Introduce New Innovations to Advance National Defense Efforts

Collaboration yields new solutions that tackle complex challenges in defense and aerospace sectors

Companies to showcase live demonstration of quantum-hybrid application at Space & Missile Defense Symposium

BURNABY, British Columbia, PALO ALTO, Calif. & HUNTSVILLE, Ala., August 7, 2023 —(BUSINESS WIRE)— D-Wave Quantum Inc. (NYSE: QBTS), a leader in quantum computing systems, software, and services, and Davidson Technologies, Inc., a technology services company that provides innovative engineering, technical and management solutions for the Department of Defense, aerospace and commercial customers, today announced progress in their collaboration to create solutions that advance national defense efforts. In support of the companies’ joint presence at this week’s Space and Missile Defense Symposium, D-Wave and Davidson Technologies revealed that together they have built two applications, focused on interceptor assignment and optimized radar scheduling.

China will now use robots to maintain its FAST telescope

The machines have been tested and found more than competent.

China will soon allow intelligent robotic systems and platforms to provide maintenance services for the nation’s Five-hundred-meter Aperture Spherical Radio Telescope (FAST), dubbed as the ‘China Sky Eye’ and known as the world’s largest single-dish radio telescope, the China Media Group (CMG)

The news was reported by CGTN after the robotic systems passed several tests ensuring they were ready for this lofty task.

James Webb Space Telescope spies giant cosmic question mark in deep space (photo)

The James Webb Space Telescope continues to provide answers about the earliest days of the universe, but it’s also discovering more questions.

Question marks, to be precise. The James Webb Space Telescope (JWST) team at the European Space Agency (ESA) released an image on Wednesday (June 26) offering the most detailed look yet at two actively forming young stars located 1,470 light-years from Earth in the Vela Constellation. In the image, the stars, named Herbig-Haro 46/47, are surrounded by a disk of material that “feeds” the stars as they grow for millions of years.