WHAT ARE OUR CHANCES?

Billions of years ago, Mars was stripped of its atmosphere and it’s oceans. According to Revelations, we are coming to the end of the sixth period of one thousand years from Adam the first modern man to have evolved on earth, and it is said that at the end of the next seventh day=period of one thousand years, all physical life forms on this planet will be incinerated and the seas will be no more.

Our Solar System does not sit still in space. It travels around the centre of the Milky Way — a supermassive black hole — completing one full orbit roughly every 225–250 million years. This immense journey is called a Galactic Year .

During this orbit, the Solar System passes through different regions of the galaxy, each with its own physical conditions. These changes unfold on timescales far beyond human history, but they shape the long‑term environment of Earth. Here are the major phases and conditions astronomers recognise: The Milky Way has spiral arms — dense regions filled with gas, dust, and young stars. Our Solar System’s orbit is unusually smooth and tends to avoid the most dangerous parts of these arms, which is one reason complex life has been able to survive on Earth.

When we do approach or graze a spiral arm. Supernova rates increase. Cosmic radiation rises. Comet disturbances may increase (due to gravitational nudges in the Oort Cloud). Star density is higher, increasing gravitational interactions. These passages may correlate with some mass‑extinction cycles in Earth’s deep past, though the evidence is still debated.

Between spiral arms lie quieter regions with: Lower star density. Fewer supernovae. More stable radiation levels. Less gravitational disturbance. This is where our Solar System spends most of its time — a “safe lane” in the galaxy.
The Solar System does not travel in a perfectly flat orbit. It bobs up and down through the galactic plane over millions of years. NASA notes that we are currently moving outward and slightly upward but will eventually be pulled back toward the plane by gravity.

Crossing the galactic plane may bring: Slight increases in cosmic radiation. More gravitational influence from nearby stars. Potential disturbances to cometary orbits. These effects are subtle but real on geological timescales.
As we orbit the galaxy, the Solar System encounters: Regions with more or fewer cosmic rays. Areas with different densities of interstellar gas.

Occasional proximity to supernova remnants. These variations can influence Earth’s atmosphere and climate over millions of years.
As we move through different regions: Passing stars may perturb the Oort Cloud. Dense molecular clouds may alter comet trajectories. Tidal forces from the galactic centre subtly affect the Solar System’s structure. These influences are extremely slow but accumulate over time.

The supermassive black hole at the centre of the Milky Way anchors the galaxy gravitationally, but it does not exert dangerous effects on us at our distance. Its role is primarily: Maintaining the galaxy’s structure. Governing the orbital paths of stars. Providing the gravitational centre around which we orbit. We are far enough away that its radiation and tidal forces do not affect Earth directly.

Having heard the scientific speculations of what might occur in an orbit or in one cosmic year and knowing that no two cosmic orbits=years will experience the exact same conditions, we are assured that science does not have a clue as to what might happen to life on earth during this orbit.

Approximately 60–62 cosmic years have passed since the Big Bang, which was the origin of this expansion of the singularity some 13.8 billion years ago.
This aligns with modern astronomy’s estimate that the Solar System itself has completed about 20 galactic orbits since its formation 4.5 billion years ago.