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Steven W. Disbrow

“Unless we come up with a way to move the Earth out of the way, we are basically marking time until one of these things hits us.” more

Just A Theory

For some reason, we humans are obsessed with speed. The faster a thing goes, the more impressive it is to us. This fascination probably has some sort of basis in how we evolved. The faster a person was, the more likely they were to escape ... more

Just A Theory

Well, the kids are back in school, and we’re about half way through Summer, so it must be time for another Research Roundup! The biggest science news of the summer is the launch (just days ago) of the Parker Solar Probe. Unlike previous missions ... more

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Recently, my nephew came to stay with us for a few weeks. We hadn’t seen each other in over a decade and he is at the age (17) where he’s deciding what to do with his life. A couple of his pursuits, music and the theater, were very gratifying to ... more

Just A Theory

This week, people the world over will be celebrating the unofficial holiday known as “Juneteenth.” It’s a week-long celebration of the Abolition of Slavery here in the United States, which occurred on June 19th, 1865. While Juneteenth has been a ... more

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As you may have heard, humanity’s addiction to plastic is becoming a problem. It’s been well documented for a while now that plastics are killing animals in the oceans and on the land. More recent studies have found that micro-plastic ... more

Just A Theory

Apparently, just hours ago (as I write this) on Sunday, a large heretofore unknown asteroid (2018 GE3) raced across the southern sky, with absolutely no warning. Based on the amount of light it was reflecting, astronomers put its size at ... more

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Did you know that it’s International Women’s Month? It is! Because of that, I wanted to take a look at a few women in Science that you should know. (If you don’t already.) more

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So, we are about half-way through the Winter of 2018, which means it’s time for another Research Roundup! Of course, the first thing we have to talk about is last week’s successful launch of SpaceX’s Heavy Falcon rocket. After years of planning ... more

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As I’ve noted in the past, there’s an undercurrent of anti-science that has always been a part of the American life-style. This undercurrent holds that science and the pursuit of knowledge is somehow undesirable or even “evil.” more

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Last month, I told you about a new type of astronomy, one that uses Gravitational Waves to view cataclysmic events happening across the universe. This month, we’ve got news from old-school astronomers about a strange visitor from another star … more

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As we went to print last month, news was swirling about an “Unprecedented” announcement that would be coming from the folks at the LIGO observatory. “LIGO,” if you don’t remember, is the “Laser Interferometry Gravitational-Wave Observatory.” more

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To be honest, given the super storms in the Gulf, the gigantic wildfires out west and crazy spring-like weather that we’re experiencing here in mid-October, I strongly considered turning in a column that just said, “Climate Change is Real And ... more

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Late last week, one of humanity’s most valiant emissaries, the Cassini Probe, met its end in the crushing atmosphere of Saturn. Cassini scientists dove the bus-sized robot into Saturn’s atmosphere on Friday, ending it’s almost 20-year mission in ... more

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Finally! After being foretold for years, the mother of all Teachable Moments is finally here! On Monday, August 21st, 2017, between 1 p.m. and 4 p.m., there will be a Solar Eclipse visible from Chattanooga and the area to the north of the city. more

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After failing miserably last month to give you a full-sized “Top 10” list of Human Parasites, I thought I’d try again, and see if I can make it to at least Seven Signs of Climate Change. So, here we go ... more

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It’s that time again. Riverbend is here and so is my deadline. With that in mind, this month you get a cliché “Summer Top 10” list. But, given that it’s a list of Human Parasites, you know it’s gonna suck, literally and figuratively. more

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As I’ve mentioned in the past, America has a paradoxical relationship with Science. On the one hand, we all benefit from the results of science, but, as a country, we seem to be less and less convinced of the value of science. more

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As long-time readers know, space science is a particular interest of mine. One reason is that there’s always something interesting going on. In fact, the next few months are going to be particularly exciting as there are several events to look ... more

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The past few years have seen an explosion in the number of exoplanets that we’ve discovered. In fact, it seems that almost every star we look at has one or more planets whizzing around it. For those of us of a certain age, it’s hard to believe ... more

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When Charles Darwin came up with his theory of evolution by means of natural selection, the prevailing wisdom of the time was that man had been created, as is, by a supernatural entity, some six- to ten-thousand years earlier. Man, it was said ... more

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Wednesday

October 17, 2018

Thursday

October 18, 2018

Friday

October 19, 2018

Saturday

October 20, 2018

Sunday

October 21, 2018

Monday

October 22, 2018