A Major Step Towards Finding Dark Matter

Via Science Alert

In our eagerness to identity the Universe’s occult phenomena of dark energy and dark matter, we often forget that most of its better defined particles also seem to be MIA.

Relax. We now have our first solid piece of evidence that this matter has been hiding in the delicate threads of cosmic webbing bridging neighbouring galaxies, right where the models predicted.

READ MORE…. 

Feature image: S.Epps & M.Hudson/University of Waterloo

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Could We Be Wrong About Gravitational Waves?

“In 2010, Erik Verlinde surprised the world with a completely new theory of gravity. According to Verlinde, gravity is not a fundamental force of nature, but an emergent phenomenon. In the same way that temperature arises from the movement of microscopic particles, gravity emerges from the changes of fundamental bits of information, stored in the very structure of spacetime.”

Read More (on The Space Academy)

RIP Cassini

Cassini’s Saturn Mission Goes Out In A Blaze Of Glory NPR RIP, Cassini: Historic Mission Ends with Fiery Plunge into Saturn Space.com NASA’s groundbreaking Cassini probe is dead after 20 years of exploring Saturn on nuclear power Business Insider The Cassini Spacecraft Burns Up In Saturn’s Atmosphere Popular Mechanics Full coverage from Top Stories – Google News http://www.npr.org/sections/thetwo-way/2017/09/15/550709214/cassinis-saturn-mission-goes-out-in-a-blaze-of-glory

via Cassini’s Saturn Mission Goes Out In A Blaze Of Glory — Wanda Posner

Fascinating look inside Saturn’s Rings

Full Article courtesy of NASA here

September 7, 2017

These are the highest-resolution color images of any part of Saturn’s rings, to date, showing a portion of the inner-central part of the planet’s B Ring. The view is a mosaic of two images that show a region that lies between 61,300 and 65,600 miles (98,600 and 105,500 kilometers) from Saturn’s center.

The first image (Figure A, above) is a natural color composite, created using images taken with red, green and blue spectral filters. The pale tan color is generally not perceptible with the naked eye in telescope views, especially given that Saturn has a similar hue.

The material responsible for bestowing this color on the rings—which are mostly water ice and would otherwise appear white—is a matter of intense debate among ring scientists that will hopefully be settled by new in-situ observations before the end of Cassini’s mission.

Read more…

Could the Future be Influencing the Past?

Original article via Science Alert

One of the weirder aspects of quantum mechanics could be explained by an equally weird idea – that causation can run backwards in time as well as forwards.

What Einstein called “spooky” action at a distance could theoretically be evidence of retrocausality, which is the particle equivalent of you getting a stomach ache today thanks to tomorrow’s bad lunch.

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Feature image Mikhail Leonov/Shuterstock

First Exomoon Discovery

If confirmed, the “exomoon” is likely to be about the size and mass of Neptune, and circles a planet the size of Jupiter but with 10 times the mass.The signal was detected by Nasa’s Kepler Space Telescope; astronomers now plan to carry out follow-up observations with Hubble in October. A paper about the candidate moon […]

via Signal may be from first ‘exomoon’ — Site Title