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Emma Garrett
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College student. Amateur astronomer. Writer. Democrat. Hardcore trekkie.
College student. Amateur astronomer. Writer. Democrat. Hardcore trekkie.

15 followers
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Does this sight look familiar? If you’ve had the opportunity to observe the night sky from a dark place, far away from the light pollution of the city, on a clear night, you might have seen this before. It’s the Milky Way—our view of our galaxy from the…
Radiation from Interstellar Dust
Radiation from Interstellar Dust
scienceatyourdoorstep.com
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I often refer to what we call the interstellar medium as the galaxy’s “backstage,” and I do that for a reason: for the most part, we can’t see it. The backstage of any theater isn’t part of the show. You, as part of the audience, never see it. But you see…
Interstellar Spectra
Interstellar Spectra
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Take a wild guess: What do you think this image is showing you? If you said it looks like a giant black hole in space, I don’t blame you. I also don’t blame you if you thought it looks like a giant outer space blob…and the funny thing is, that’s actually…
Extinction and Reddening of Starlight
Extinction and Reddening of Starlight
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What you see here is the Trifid Nebula, a vast cloud of gas and dust in space. In my last post, we explored why it looks the way it does. We discovered that the pink hues of emission nebulae are caused when extremely hot nearby stars “excite” the gas of…
The Stuff of Nebulae
The Stuff of Nebulae
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Hi everyone, So…I didn’t manage to get posts out this week. Sorry about that. I’m working up to 9 posts a week by August 1st, and according to my calendar, I am on track. I promise, you’ll get plenty of posts next week. Wait a second…what was that about 9…
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What’s a nebula? Well…you’re looking at one. Okay, okay, I know. You want to know what that actually is. You want to know why it’s there. You want to know why there are colors in space…and why you’ve never noticed such a thing in your own night sky…
What is a Nebula?
What is a Nebula?
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What the heck is the average star like? We’ve talked about a lot of stars over the past few weeks. We’ve discovered the vast distances between the stars, looked more closely at what really makes a star bright, and covered all kids of ways to classify…
The Average Star
The Average Star
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What makes a star shine bright? Much earlier on—probably months ago now—I explained how something called the proton-proton chain generates massive amounts of energy within stars, and enables them to fuel whole solar systems. That’s the battery of a star.…
Star Mass and Density
Star Mass and Density
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Imagine a frisbee. At the center of this frisbee lies the sun—our sun, for simplicity’s sake. And sprinkled around the surface of its disk are all nine…excuse me, eight…planets of the solar system, plus the dwarf planets, asteroids, moons, Kuiper belt…
Eclipsing Binary Stars
Eclipsing Binary Stars
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Most of the time, when I publish posts on this blog, I choose a topic and write about it in the hopes that you’re curious about it. But I also want to know what you are curious about—always. I want to call your attention to the “Got Questions?” link up in…
Science Questions, Anybody? (#2)
Science Questions, Anybody? (#2)
scienceatyourdoorstep.com
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