Tag Archives: space

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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Cosmic Rays

Cosmic rays remain, for the most part, a cosmic mystery. But then, what about the universe doesn’t still remain partially shrouded in mystery? Cosmic rays are radiation, but they’re not electromagnetic. That is, they’re not on the electromagnetic spectrum. So, … Continue reading

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Infrared & High-Energy Astronomy

You probably recognize this image. You see something like it whenever you look up at the sky. Some days are clearer than others—some, you might even see a completely blue sky—but regardless, you know that this is an image of … 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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Einstein: Space-Time Curvature Confirmed

When you hear about “space-time,” it’s just a way to say that space is related to time. And the curvature of space-time, as Albert Einstein predicted, is the way space and time alike literally bend around a mass such as the … Continue reading

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Einstein: General Relativity

Albert Einstein may have been the genius among physicists, but like all others before his time, he stood on the shoulders of giants. Einstein did not propose that the sun was the center of the solar system; that idea was … Continue reading

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Einstein: Special Relativity

Albert Einstein’s name literally sends shivers down my spine. This is the man who discovered physics as we know it. This is the man who filled in the gaps where even Newton’s laws of motion went wrong and expanded our … Continue reading

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Newton and Gravity

So, the moon stays in orbit around the Earth, right? Yeah, I thought so. But why? The moon’s orbit is not a straight line, which means it’s accelerated motion (using the physics definition, which is absolutely any change in speed or … Continue reading

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