Discover Magazine: Latest Blog Posts

Welcome to the Saturday edition of “Discover Magazine” from Hawaii Science Digest.

Views expressed in this science and technology news summary are those of the reporters and correspondents.

Content provided by “Discover Magazine.”

Accessed on 14 September 2019, 1720 UTC.

Source:

http://blogs.discovermagazine.com

Please click link or scroll down to read your selections.

LATEST BLOG POSTS

THE CRUX

9 Ways to Instantly Cut Your Environmental Impact

By Anna Groves | September 13, 2019 4:43 pm

Buying clothes and other items second hand is a great way to cut your environmental impact. (Credit: Cabeca de Marmore/Shutterstock)

Helping the environment might seem like an impossible task, especially when there are a couple billion other people out there, still doing their thing. But even just cutting your current environmental impact a little is better than doing nothing at all. So, here are a few ideas to get you started.

Buy Stuff Second Hand

What has less of an impact than buy …

CATEGORIZED UNDER: ENVIRONMENTTOP POSTS

D-BRIEF

Hubble Sheds New Light on Lives of Star Clusters

By Hailey Rose McLaughlin | September 13, 2019 4:07 pm

A new look at the Large Magellanic Cloud is helping astronomers better understand how groups of stars evolve. (Credit: ESA/NASA)

NASA’s Hubble Space Telescope has taken new observations of
the Large Magellanic Cloud, a small, neighboring galaxy to our Milky Way and
found new insights into the star clusters that live there.

Star clusters are quite common in the universe. If a galaxy
is a cosmic metropolis, star clusters would be like a small town. They form as huge
clouds of gas and du …

CATEGORIZED UNDER: SPACE & PHYSICSTOP POSTS
MORE ABOUT: STARS

D-BRIEF

Insecticides May Be Giving Songbirds Anorexia and Delaying Their Migrations

By Roni Dengler | September 12, 2019 5:00 pm

An experiment with white-crowned sparrows shows that insecticides may be impacting songbirds. (Credit: Phil Lowe/Shutterstock)

Some migrating songbirds may be starving thanks to agricultural pesticides. Neonicotinoids are popular insecticides used in industrial agriculture across the U.S. But the chemicals’ are controversial because of their detrimental impact on bees and other pollinators.

Now, a group of researchers has added heat to the debate, showing that even small amounts of one pa …

CATEGORIZED UNDER: ENVIRONMENTLIVING WORLDTOP POSTS
MORE ABOUT: AGRICULTUREANIMALSECOSYSTEMS

D-BRIEF

Adrenaline Doesn’t Actually Cause the Fight-or-Flight Response, New Study Says

By Jennifer Walter | September 12, 2019 4:49 pm

When you’re overcome with fear, it’s not adrenaline making you want to fight or flee. (Credit: Master1305/Shutterstock)

A thrilling high when you’re faced with danger, a boost of energy when you’re going for an intense run – we tend to associate these rushes with adrenaline, a hormone synonymous with our fight-or-flight response. But it turns out adrenaline might not be what activates our brains’ stress reaction after all.

In fact, our bones might be doing more work than we origina …

CATEGORIZED UNDER: HEALTH & MEDICINETOP POSTS

D-BRIEF

Astronomers May Have Just Discovered an Interstellar Comet Visiting Our Solar System

By Mara Johnson-Groh | September 12, 2019 4:00 pm

Astronomers first found Comet C/2019 Q4 on August 30. The past week of observations, including this image taken by the Canada-France-Hawaii Telescope on Hawaii’s Big Island, have increased astronomers confidence that the comet started life in another solar system. (Credit: Canada-France-Hawaii Telescope)

A newly discovered comet has astronomers excited. Formally
named C/2019 Q4 (Borisov), the object appears to have come from outside our
solar system. If confirmed, that would make it the seco …

CATEGORIZED UNDER: SPACE & PHYSICSTOP POSTS
MORE ABOUT: COMETSSOLAR SYSTEM

IMAGEO

The dreaded “blob” may be back in the Pacific Ocean

By Tom Yulsman | September 12, 2019 1:27 pm

A gigantic area of super-warm water has formed again off the U.S. West Coast, threatening impacts on weather and wildlife

A map of sea surface temperature anomalies shows a blob of very warm water off the West Coast of the North America. (Source: Climate Reanalyzer, University of Maine)

Five years ago, a gigantic cauldron of abnormally warm water in the Pacific Ocean wreaked havoc on marine ecosystems and contributed to drought along the western coast of North America.

Dubbed “The Blob …

CATEGORIZED UNDER: CLIMATEDROUGHTENSOOCEANSELECTTOP POSTSWEATHER

ROCKY PLANET

We Ignore Expertise at Our Own Peril

By Erik Klemetti | September 12, 2019 9:50 am

Hurricane Dorian seen from the MODIS imager on Terra, August 31, 2019. NASA.

We seem to now live in an age where people are comfortable ignoring experts, especially those in the sciences.

You may have noticed that Hurricane Dorian didn’t hit Alabama. Depending on the circles in which you run, you might think it was a “close call” or a completely mistaken statement that Alabama was ever in any real danger from the hurricane. However, what is clear is that when experts in meteorology — the …

CATEGORIZED UNDER: ROCKY PLANETSCIENCESCIENCE BLOGS

D-BRIEF

Many Cancer Drugs Don’t Work Like Scientists Say They Do, New Study Suggests

By Roni Dengler | September 11, 2019 4:00 pm

(Credit: Shidlovski/Shutterstock)

Cancer therapies often fail to work when tested in clinical trials. As a result, a startling 97 percent of drugs designed for specific cancer treatments do not receive approval from the Food and Drug Administration. Now researchers say they may have figured out part of the reason why.

In a new study out Wednesday in the journal Science Translational Medicine, scientists report many cancer drugs don’t work the way their designers assumed th …

CATEGORIZED UNDER: HEALTH & MEDICINETOP POSTS
MORE ABOUT: VACCINES & DRUGS

D-BRIEF

A ‘Brown Tide’ of Seaweed is Choking the Caribbean and Worrying Scientists

By Rodrigo Pérez Ortega | September 11, 2019 12:51 pm

Dead seaweed chokes beaches across the Caribbean every year. (Credit: Playa del Carmen/Shutterstock)

(Inside Science) — In the summer of 2018, thousands of tons of a prolific seaweed called sargassum invaded the pristine beaches of the Caribbean. In Mexico, the turquoise waters and clear, smooth sand of the touristy Mayan Riviera turned into a brown mess. The sight of sargassum — a type of brown algae — and its smell scared tourists away, and local ecosystems started to suffer greatly.

CATEGORIZED UNDER: ENVIRONMENTTOP POSTS
MORE ABOUT: ECOLOGY

D-BRIEF

Giant Bubbles Spotted Rushing Out from Milky Way’s Center

By Mara Johnson-Groh | September 11, 2019 12:00 pm

The MeerKAT telescope is superimposed on a radio image of the Milky Way’s center. Radio bubbles extend from between the two nearest antennas to the upper right corner, with filaments running parallel to the bubbles. (Credit: SARAO/MeerKAT)

The Milky Way is blowing bubbles. Two giant radio bubbles,
extending out from the galaxy for over 1,400 light years, were just discovered
in X-ray data. Astronomers think the bubbles started forming a few million
years ago due to some type of cataclysmic  …

CATEGORIZED UNDER: SPACE & PHYSICSTOP POSTS
MORE ABOUT: BLACK HOLESCOSMOLOGY

This site uses Akismet to reduce spam. Learn how your comment data is processed.

%d bloggers like this: