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General Science

30 years of Hubble: Images and discoveries that shaped astronomy

Posted May 14, 2022 by ScIU Editorial Team

A bright spiral galaxy with two prominent arms of red with a blue glow of stars. The center is bright white.

[A bright spiral galaxy with two prominent arms of red with a blue glow of stars. The center is bright white.]

April 24th, 2020 was the 30th anniversary of the launch of perhaps the most famous telescope: the Hubble Space Telescope. Orbiting the earth, this telescope has changed the way astronomers and the public alike view the universe. With over 1.4 million observations, providing data for more than 16,000 peer-reviewed scientific papers, Hubble has exceeded expectations…

Familial DNA as a method of identifying serial killers

Posted April 30, 2022 by ScIU Editorial Team

[Slice of pizza on a white plate next to a drink and condiments.]

In 1992, an 84-year-old grandmother was brutally assaulted and killed in California. For 25 years, the mystery of her death went unsolved — and her killer unapprehended — due to the lack of physical evidence to tie him to the crime. Twenty-five years later, police paid a visit to a pizza party where they found sufficient evidence to arrest her murder. At first glance, the murder and the pizza party seem unrelated. However, there is a link: familial DNA…

Deciphering geographers’ lingo

Posted April 23, 2022 by Dan Myers

[An embellished map of the world from 1689, including separate frames for the western hemisphere, eastern hemisphere, and north and south poles.]

Every academic discipline has its own special words and phrases. However, it is hard to match geography in terms of words that are just curious. Did you know that “space” and “place” mean very different things? That the “Annals” is the hallmark of a geographer’s career? And the “First Law of Geography” is extremely important, but does not always hold true? To decipher the meanings of these words and phrases, we first must come to terms with the most ambiguous word of them all: “geographer”…

The power of quantum computing: Parallelism

Posted April 16, 2022 by ScIU Editorial Team

[A spinning coin is analogous to the behavior of a qubit in a superposition.]

Tech companies are going big in a microscopic way, pouring millions of dollars into a new form of computing: quantum computing. Quantum computers will revolutionize drug research, material discovery, and artificial intelligence by solving complex problems in a new way. To understand this, let’s review how normal computers solve problems and compare this to how a quantum computer would do it…

A beginner’s guide to Bloomington birds

Posted April 9, 2022 by Guest Contributor

[Two round cardinals grip onto two iron bars.]

Step outside in Southern Indiana and you’ll be greeted by a symphony of chirps, calls, and songs from a myriad of local birds. Home to over 400 species, Indiana is a birder’s paradise. Warblers, eagles, and owls alike call Bloomington home and are frequently spotted on the campus of IU Bloomington. Birds are a vibrant part of Bloomington culture, so it’s worth getting to know a few…

How rat behavior may inform our understanding of racism

Posted April 2, 2022 by J Wolny

[A white rat and black rat facing each other, peering inquisitively.]

Imagine that you wake up in a small room with no doors. You quickly realize that there is no way out. Oh, shoot. Further, you see that there is another individual trapped in a small cylindrical Plexiglas container in the middle of this arena, with barely any room to move. You are not sure what the consequences could be if you go investigate—something could hurt you. Someone may grab you and trap you in a claustrophobia-inducing container as well. The first thought that comes to mind may be the Saw movie series, so you would likely be reluctant. The question is: would you attempt to free this individual in the face of these risks…

What the heck is a nanowire?

Posted March 19, 2022 by Thomas Ruch

[A myriad of nanowires are shown growing outwards, originating from a central growth nucleus.]

Imagine a future in which your iPhone 20 charges itself as you walk down the street and your house is powered by photoelectrochemical (PEC) cells installed in your backyard, using the power of the sun to convert captured rainwater into clean hydrogen. If we have any hope of realizing this future, you can be certain that nanowires will play a significant role. So what are nanowires, and why are they so important? My previous blog post was dedicated to examining a class of objects known as topological materials, with an emphasis on the bizarre realm of topological insulators (TIs). Implicit in the definition of topological insulators in the previous post was the assumption that the bulk of this insulator behaves as one would expect from its name: preventing the flow of electric current. Real-world TIs are not quite so simple, however…

Potluck of neuroscience: Meet microglia, your brain’s National Guard

Posted March 12, 2022 by ScIU Editorial Team

[An illustration of a microglia.]

One of the first things you’ll learn about if you start studying the brain is that it is made of cells called neurons. While neuroscientists have a decent understanding about how neurons work, it turns out that at least half of the brain is actually made of non-neuronal cells called glia*. Glia, named based on the Greek word for ‘glue,’ were initially thought to be a type of connective tissue in the nervous system, acting just as scaffolding, while the neurons did all the communicating. In the last couple decades, the growing field of neuroimmunology has highlighted the importance of a certain kind of glia: microglia, the brain’s resident immune cells…

What is a species and why should we care?

Posted March 5, 2022 by Allison Nelson

[Many small birds are diving and floating in shallow water. There are birds floating in the foreground and background, while the middle ground is full of birds mid-flight. They all look similar and may be the same species.]

When you read about an animal on Wikipedia or in a textbook, one of the first things mentioned is its scientific name — genus and species. But, how do we define a species? First, why are we concerned with classification? Humans have an innate need to categorize. It’s ingrained in our minds from our days as hunter-gatherers, when we needed to remember what each plant was and whether it was safe to eat or poisonous. Taxonomy is a hierarchical system that classifies the biological continuum. It comes from Greek philosophers (including Plato and Aristotle), who ranked animals as closer or farther from God. Darwin then focused on common ancestors, and his ideas on how to draw phylogenies are still used today…

The new beast in our backyards

Posted February 19, 2022 by Allison Nelson

[Reddish brown coywolf in the snow. It has partially turned to face the camera.]

Watch out, Hoosiers! There’s a new predator afoot. Thirty to forty-five pounds, hungry, mobile, and travelling up to 15 miles per day — coywolves are Indiana’s newest predators! A quick note on terms — since the early 1900’s, the term ‘coywolf’ has described a hybrid animal from a wolf and a coyote. The mid-2000’s saw the rise of wolf-coyote-dog hybrids across North America. These creatures are widely called ‘coywolves.’ All uses of ‘coywolf’ or ‘coywolves’ in this article refer to the latter. Scientists are still somewhat divided on whether these triple-hybrids are a separate species…

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