SCIENCE

Posts in "Science"

The Bullet Cluster Proves Dark Matter Exists, But Not For The Reason Most Physicists Think

The above image, a composite of optical data, X-ray data, and a reconstructed mass map, is one of the most famous and informative ones in all of astronomy. Known as the Bullet Cluster, it showcases two galaxy clusters that have recently collided. The individual galaxies present within the clusters, like two guns filled with bird shot fired at one another, passed right through one another, as the odds of a collision were exceedingly low.

Link:https://www.forbes.com/sites/startswithabang/2017/11/09/the-bullet-cluster-proves-dark-matter-exists-but-not-for-the-reason-most-physicists-think/#9cc7a941738c

Move over, Planet 9: Does a Mars-sized 10th planet lurk beyond Pluto?

In January last year, astronomers from Caltech suggested that a gigantic so-far-undiscovered planet might be lurking on the fringes of the Solar System. Now researchers from the University of Arizona (UA) have found that if it exists, this so-called Planet Nine might not be alone out there. Weirdly wobbling objects in the Kuiper Belt seem to indicate the influence of yet another planetary body at least as large as Mars.

Link: https://newatlas.com/warped-kuiper-belt-planet-ten/50173/

Astronomers take a closer look at one of Earth’s quasi-satellites

The Moon isn’t the only traveling buddy keeping the Earth company on its journey around the Sun. Occasionally an asteroid will get caught in a gravitational dance with our home for a few years or so, before disappearing into space again. Last year astronomers discovered one of the most stable of these “quasi-satellites”, and now they’ve peered closer to get a better understanding of what it is and where it might have come from.

Link: https://newatlas.com/asteroid-quasi-satellite-closer-look/51820/

In search of the ninth planet

A University of Michigan doctoral student has logged two pieces of evidence that may support the existence of a planet that could be part of our solar system, beyond Neptune.

Some astronomers think this alleged planet, called Planet Nine, exists because of the way some objects in space, called “Trans-Neptunian Objects,” or TNOs, behave. These TNOs are rocky objects smaller than Pluto that orbit the sun at a greater average distance than Neptune.

Link: https://phys.org/news/2017-10-ninth-planet.html

Astronomers just proved the incredible origin of nearly all gold, platinum, and silver in the universe

Platinum and gold are among the most precious substances on Earth, each fetching roughly $1,000 an ounce.

However, their allure may grow stronger — and weirder — thanks to a groundbreaking new finding about their violent, radioactive, and cosmic origins.

Link: https://www.businessinsider.com/neutron-stars-crash-ligo-gravitational-waves-periodic-elements-2017-10

Plastic-eating caterpillars could save the planet

MOST scientific research follows a logical progression, with one experiment following up on the findings of another. Every now and then, however, serendipity plays a part. Such is the case with a paper just published in Current Biology, which reveals to the world a moth capable of chewing up plastic.

Link: https://www.economist.com/science-and-technology/2017/04/29/plastic-eating-caterpillars-could-save-the-planet?fsrc=scn%2Ftw%2Fte%2Fbl%2Fed%2F

Only science can solve the intriguing stick insect mystery-First Dog on the Moon

As 2019 begins…
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Link: https://www.theguardian.com/commentisfree/2017/oct/06/only-science-can-solve-the-intriguing-stick-insect-mystery

Solar Power and Honey Bees Make a Sweet Combo in Minnesota

Last year, when Minnesota passed a groundbreaking law on best practices for providing pollinator habitat at solar power sites, they also (unexpectedly) helped launch something called Solar Honey, in which solar companies and commercial beekeepers work together in a mutually beneficial arrangement.

Link: https://www.smithsonianmag.com/innovation/solar-power-and-honey-bees-180964743/