ريتشارد دوكنز's Blog, page 770

Astronomers Spot Star Leaving Milky Way At 2.7 Million Miles Per Hour

Space





Photo credit:

NASA/ESA/G. Bacon (STScI). We've learned a lot about a hypervelocity star escaping the galaxy (note that this is an artist's rendition of a very different HSV, giant blue star HE 0437-5439)

A star named US 708 has been spotted leaving our galaxy at 4.3 million kilometers an hour (2.7 million mph), the fastest exit speed ever observed. US 708's haste has been attributed to a supernova going off nearby, shedding light on how one such type of supernova occurs.

Study Suggests Exercise Is Associated With Changes In Brain Structure

The Brain





Photo credit:

Warren Goldswain/ Shutterstock

The benefits of exercise on physical health are no secret, but there is also an increasing amount of evidence to suggest that it can help emotional and mental well-being as well.

Researchers Image What They Believe To Be Smallest Life Possible

Plants and Animals





Photo credit:

Berkeley Lab

Prokaryotes are generally 10 times smaller than eukaryotic cells, but researchers found evidence of bacteria even smaller than that. In fact, they believe these types of bacteria could be the smallest form of life physically possible. A new paper published in Nature Communications describes the detailed microscopy techniques used to analyze the bacteria.

How to Make a Superbug, and an Even More Super-Collider!

SciShow News explains how evolution and antibiotics have teamed up to produce an ordinary germ that can now, sometimes, kill people. Also, our favorite piece of science equipment — the Large Hadron Collider — has big plans for this year, including the study of dark matter.

President of Space Sam Kirk: https://www.youtube.com/user/skirkegaardTV

Virtual Tour of LHD: http://virtual-tours.web.cern.ch/virtual-tours/vtours/LHC/LHC.html

Hosted by: Hank Green

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Sources:

http://www.newswise.com/articles/what-s-new-for-lhc-run-ii

http://www.cdc.gov/HAI/organisms/cre/

http://www.npr.org/blogs/health/2015/02/19/387552431/heres-why-californias-superbug-outbreak-isnt-as-scary-as-it-seems

http://www.latimes.com/business/la-fi-hospital-infections-20150218-story.html#page=1

http://www.jstor.org/stable/10.1086/677157

http://learn.genetics.utah.edu/content/microbiome/antibiotics/

New Species of Monkey Discovered In Amazon Rainforest

Plants and Animals





Photo credit:

Adriano Gambarini

The Amazon rainforest is revered for its incredible biodiversity, and a new mammal has joined the ranks. Researchers discovered what they believed to be a new species of titi monkey in Brazil a few years ago. The new species has now been officially described in the journal Papéis Avulsos de Zoologia.

FEMALE HATING FEMINISTS!

Download Agent Alice: http://goo.gl/VfU3Ml

Feminists have yet again found something trivial to become extremely offended at. Don’t you dare call me a female!!!!

Article: The Problem With Calling Women ‘Females': http://jezebel.com/the-problem-with-calling-women-females-1683808274

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This video was sponsored by Wooga (AGENT ALICE).

Legal Highs – A Look At The Growing Use Of Synthetic Drugs

Health and Medicine





Photo credit:

Legal doesn’t mean safe. Image of drugs via Shutterstock.

In recent years, hundreds of new synthetic recreational drugs have emerged – drugs that neither the general public nor the scientific community know very much about. Many of these new synthetic drugs – often referred to as “legal highs” – are dangerous and continue to lead to poisonings throughout the US and the rest of the world.

These drugs provide similar highs to other, more well-known drugs, like marijuana and cocaine. Many are still legal and others have only recently become illegal.

So why would people use these potentially harmful new drugs?

In Praise Of The Humble Fruit Fly, Leading The Way On Cancer Research

Health and Medicine





Photo credit:

You and me have quite a few genes in common. André Karwath, CC BY-SA

Cancer research is a global effort involving millions of people, and the fruit fly Drosophila melanogaster – which has been helping our understanding of the disease for decades – is still illuminating the most fundamental part of this process: the beginning.

Daily Diary Reveals How Cannabis Use Affects People With Bipolar

Health and Medicine





Photo credit:

Experiences in real-time. Rafael-castillo, CC BY

Rates of substance use are higher in people with mental health problems compared to the general population and particularly in people with bipolar disorder, with cannabis the street drug most frequently used.

What Cures May Lie Within Kew Gardens? Give It The Financial Freedom To Find Them

Plants and Animals





Photo credit:

Kew is home to plants from across the globe. Diliff, CC BY-SA

To the casual visitor, the World Heritage Site that is the Royal Botanic Gardens at Kew might appear to be merely a green and pleasant land, a tranquil oasis amid the hustle and bustle of London – but it is under threat. A new report by a committee of MPs calls for greater financial freedom for this venerable institution.