An observatory of the cosmos

Beyond the
Horizon

A journey through the architecture of the universe

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93B Light-years, observable universe
2T Estimated galaxies
13.8B Years since the Big Bang
299K Speed of light (km/s)

Wonders of the
Observable Universe

01

Black Holes

Regions of spacetime where gravity is so intense that nothing — not even light — has enough energy to escape. Formed from the remnants of massive stars, they warp the fabric of space and time in ways that still challenge our deepest physical theories.

Astrophysics — Extreme Gravity
💫02

Neutron Stars

Among the densest objects in the universe, neutron stars are the collapsed cores of giant stars. A teaspoon of their material weighs approximately one billion tonnes. Some, called pulsars, emit radiation beams of extraordinary precision.

Stellar Evolution — Dense Matter
🌌03

Dark Matter

Comprising approximately 27% of the universe, dark matter neither emits, absorbs, nor reflects light. Its existence is inferred through gravitational effects on visible matter, galaxy rotation curves, and the large-scale structure of the cosmos.

Cosmology — The Invisible Universe
🌠04

Supernovae

One of the most energetic explosions known, a supernova occurs when a massive star exhausts its fuel. For a brief period, it can outshine an entire galaxy, dispersing heavy elements that seed the formation of subsequent stars, planets, and life itself.

Stellar Physics — Nucleosynthesis
🔭05

Gravitational Waves

First predicted by Einstein in 1916 and directly detected in 2015, gravitational waves are ripples in spacetime generated by violent cosmic events — the merger of black holes and neutron stars billions of light-years away from Earth.

General Relativity — Spacetime
☄️06

Cosmic Inflation

The leading theory holds that the early universe underwent exponential expansion, growing by a factor of at least 10²⁶ in a fraction of a second. This inflation smoothed the cosmos and seeded the quantum fluctuations that became today's large-scale structure.

Cosmology — Early Universe

A Family of
Eight Worlds

"The cosmos is within us. We are made of star stuff. We are a way for the universe to know itself." — Carl Sagan

The Scale of
Everything

Scale & Distance

The light reaching your eyes from the Andromeda Galaxy left its source 2.5 million years ago

When you look up at the night sky, you are not seeing the universe as it is — you are seeing it as it was. Light from our nearest galactic neighbour departed when our ancestors were first crafting stone tools. The night sky is, in every sense, a time machine.

On the largest scales, the universe is composed of vast filaments of dark matter and galaxies interspersed with enormous voids hundreds of millions of light-years across — a structure known as the cosmic web.

2.5M

The Sun

1.3 million Earths could fit inside the Sun

Yet our Sun is a modest, mid-sequence star. The largest known star, UY Scuti, has a radius roughly 1,700 times that of the Sun — large enough to engulf the orbit of Jupiter.

Stars

More stars exist than grains of sand on all of Earth's beaches

Current estimates suggest 200 to 400 billion trillion stars in the observable universe — a number that genuinely defies human comprehension.