Cosmos

The universe began roughly 13.8 billion years ago in an event that is poorly named the Big Bang. There was no bang — sound requires a medium, and there was no medium yet — and there was nothing especially big about the initial state, since space itself was created in the same event that filled it. What there was, in the first fractions of a second, was the inflation of space, the cooling of an extraordinarily hot and dense plasma, and the gradual formation of the elementary particles that would eventually become atoms.

The first galaxies took several hundred million years to assemble. Cosmologists model their formation as a process of gravitational collapse — vast clouds of dark matter clumping together under their own gravity, with ordinary matter falling into the gravitational wells these clumps created. Stars formed in the densest regions, and clusters of stars merged into the rotating disks and elliptical bulges we recognize as galaxies today. The Milky Way, our home galaxy, is roughly 13 billion years old. By cosmological standards, it is middle-aged.

In 1929, the astronomer Edwin Hubble published the observation that distant galaxies were redshifted in proportion to their distance — a relationship now called Hubble’s Law. The simplest interpretation was that the universe was expanding. Subsequent observations confirmed the result, and twentieth-century cosmology was reorganized around the expanding-universe model.

In 1998, two independent teams led by Saul Perlmutter, Adam Riess, and Brian Schmidt published an even more striking result: the expansion was accelerating. Distant supernovae appeared dimmer than they should have if the expansion rate were constant, suggesting that some unknown form of energy was pushing the universe apart faster as it aged. This phenomenon, dubbed dark energy, now accounts for an estimated 68 percent of the total energy content of the universe. Dark matter — a separate, invisible form of mass that interacts with ordinary matter only through gravity — accounts for another 27 percent. Ordinary matter, the material of stars and planets and people, is the remaining 5 percent. The visible universe is, by this account, a small minority of what is actually out there.

Direct human travel into deep space remains a distant prospect. Voyager 1, launched in 1977, is the most distant human-made object — and it has only just begun to leave the heliosphere, the outer boundary of the Sun’s influence. The nearest star, Proxima Centauri, is more than four light-years away; with current technology, a one-way trip would take tens of thousands of years.

What humans have done instead is build telescopes. The Hubble Space Telescope, launched in 1990, returned the first true high-resolution images of distant galaxies and provided the data for many of the cosmological discoveries of the 1990s and 2000s. The James Webb Space Telescope, launched in late 2021 and operational from 2022, sees deeper into the infrared and can image objects from earlier in cosmic history than any previous instrument. Ground-based observatories — the Very Large Telescope, the Atacama Large Millimeter Array, and dozens of others — fill in the gaps. Each instrument produces data that is processed for years after collection, with discoveries continuing to emerge from observations made decades earlier.

Closer to home, robotic exploration has been comparatively prolific. The Apollo program landed twelve people on the Moon between 1969 and 1972, and no human has gone further since. But uncrewed spacecraft have visited every planet in the Solar System. Mars has been studied by orbiters and rovers for over fifty years; the Curiosity and Perseverance rovers continue to characterize the planet’s surface chemistry and search for biosignatures. The Cassini mission to Saturn, the Galileo mission to Jupiter, the Voyager flybys of the outer planets, and the New Horizons flyby of Pluto have all returned datasets that continue to be analyzed today.

The next decade promises further activity. NASA’s Artemis program aims to return humans to the Moon. Private launch capability has lowered the cost of putting payloads in orbit by an order of magnitude over the past fifteen years. A new generation of telescopes, both ground-based and orbital, is being designed and constructed. The pace is steady, even if the milestones are quieter than the Apollo era’s.

Gaming and cosmology share a surprising amount of common ground. The space-simulation genre — Elite Dangerous, EVE Online, Star Citizen, No Man’s Sky, Kerbal Space Program — has introduced more players to orbital mechanics, stellar classification, and the geography of the Milky Way than any single popular-science book. Players who can navigate a fictional galaxy of four hundred billion star systems have already absorbed real cosmological intuition without knowing it.

There is also a deeper connection. Procedural-generation algorithms — the techniques that let a game like No Man’s Sky describe a quintillion planets without storing each one — are recognizably similar to the simulations cosmologists use to model galaxy formation and large-scale structure. The math is the same; the goals differ. A galaxy in a game is a designed place; a galaxy in a simulation is a tested hypothesis. Both lean on the same underlying ideas of randomness, gravitation, and emergent structure.

The name of this site is not accidental. Cosmo Strategy Guides chose the cosmological name because gaming and the universe at large share a sensibility — both are vast, both reward curiosity, and both punish overconfidence. Welcome to the Cosmo strategy hub for the wider universe.

Most players will never go to space. Most players will, however, spend hundreds of hours in galaxies that designers built specifically so they could be visited. The next time you boot up a space-themed game, take a moment to look at the sky in it. Designers have spent careers making those skies feel real. Behind every rendered nebula is a research paper, an observation, a calculation about how light from a distant star would actually scatter through interstellar dust. The cosmos is closer to the gaming experience than most players realize.