Tag Archives: galaxy

The Mystery of Dark Matter

NASA galaxy image

It appears that there is a lot of mass that’s missing. In fact, this used to be called the missing mass problem. So what’s going on here? One possible explanation is that there is a lot of matter—a lot of physical stuff—arranged in a “halo” (a spherical shape surrounding galaxies). This has become known as dark matter. It’s physical stuff, thus the word “matter”—but we don’t see it, thus the word “dark.” …

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Warp Drive

Artwork of original Star Trek crew

To put it simply, this method of space travel involves stretching the fabric of space-time in a wave which would (in theory) cause the space ahead of an object to contract while the space behind it would expand. An object inside this wave (i.e. a spaceship) would then be able to ride this region, known as a “warp bubble” of flat space…

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