infinity-imagined: Particle Collisions One of many reasons why particle collision is empirical, and not just mathematical. Who said these things were unobservable? Philosophy without them is not philosophy.
How Weird Is Our Solar System? Earth and its solar system compatriots all have nearly circular orbits, but many exoplanets orbit their stars on wildly eccentric paths. Is our home system strange? Or is our sense of the data skewed?
The interface between the Earth's surface and outer space. The Kármán line at a height of 100 km mi) is shown. The layers of the atmosphere are drawn to scale, whereas objects within them, such as the International Space Station, are not.
The surface of the Moon just got funkier. Variations in the lunar gravity field as measured by NASA's Gravity Recovery and Interior Laboratory (GRAIL) during the primary mapping mission from March to May (Courtesy: NASA/JPL-Caltech/MIT/GSFC)
This animation shows a Calabi-Yau surface, a projection of higher dimensions into more familiar dimensions we are aware of. According to string theory, there are additional dimensions that we are unfamiliar with because they are curled up into tiny complicated shapes that can only be seen on tiny scales. If we could shrink to this tiny, Planck-sized scale, we could explore 6 additional dimensions at every 3D point in space.
Projection of a Calabi–Yau manifold from string theory. In quantum physics, there remain different, plausible theories regarding what combination of stuff;, space, or time emerged along with the singularity (and therefore this universe).
String Theory Infographic: String theory is an active research framework in particle physics that attempts to reconcile quantum mechanics and general relativity. It is a contender for a theory of everything (TOE), a self-contained mathematical model that