Tag Archives: science

Back in Business

Hi everyone, First, I apologize for posting so sporadically throughout this month. You didn’t get quite the content you expected from me. I can plead illness for two weeks of the month, but I have no excuse for the other … Continue reading

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The Atomic Spectrum

Astronomers know that if white light passes through a prism and is bent, it’s separated out into its component colors—the colors of the rainbow. Astronomers also know that when light interacts with atoms, the building blocks of the universe, the … Continue reading

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Atoms and Radiation

Everything we know about space comes from radiation. Now wait just a moment here. That statement explains how astronomy is such a successful field of science—it’s based entirely on the information we can glean from radiation, after all. But how … Continue reading

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The Hubble Space Telescope

The Hubble Space Telescope is one of the most famous telescopes in the world. Oops, excuse me—one of the most famous telescopes built. Hubble, after all, is certainly not in this world. Unless you call the universe the “world,” it’s about … Continue reading

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Radio Astronomy: Advantages

Whoa…what’s this thing? It’s a radio telescope, the largest in the world. It’s so huge that a normal support system can’t support its weight. So it’s basically suspended between three mountaintops. It’s 300 m across, which is 1000 feet. It’s … Continue reading

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Radio Astronomy: Limitations

Astronomy is a labor of love, and radio astronomy is no different. As I covered in my last post, radio astronomy deals with the longest wavelengths of the electromagnetic spectrum (a spectrum that includes visible light). Radio waves are not sound … Continue reading

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Radio Astronomy

Ever seen one of these before? Yeah, it’s a bit bigger than your average radio antenna. That’s because its job isn’t to direct radio signals to your house. It’s a radio telescope, and its job is to collect as many radio … Continue reading

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Telescope Imaging Systems

Have you ever seen an image like this? Okay, maybe you have…online. What with the spread of the internet these days, I’m guessing that at one point you have seen something like this on a page of image search results. … Continue reading

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Interferometry

Imagine you have an image like this. This object is faint and faraway, so you can’t make out much more detail. You know that other stars like it—closer, brighter stars—have looked like this and turned out to be two stars, … Continue reading

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Telescope Powers

Have you seen one of these guys before? You probably have, even if you don’t recognize this brand-new innovation. This is the European Extremely Large Telescope, or the E-ELT. I know, imaginative name, huh? Anyway, it’s not all that different … Continue reading

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