Space Oddities: Strange and Unexplained Mysteries Beyond Earth

By Sophia Maddox | February 23, 2024

The Oort Cloud

In the vast expanse of the cosmos, mysteries abound, and the universe never fails to astonish us with its enigmatic celestial objects and unexplained phenomena. From "spooky" radio signals originating thousands of light-years away to celestial objects like Thorne-Żytkow Objects that defy conventional understanding, we explore the wonders of the cosmos that continue to challenge the boundaries of our knowledge. Join us as we unravel the cosmic enigmas, peer into the depths of the universe, and ponder the profound questions that linger among the stars.

test article image
reddit

The Oort Cloud is a hypothetical and distant region within our solar system. This theoretical cloud is believed to be positioned thousands of times farther from the Sun than even the outermost known planets or objects, like the Kuiper Belt. Scientists propose the existence of the Oort Cloud based on the behavior and origins of comets. It is envisioned as a vast and spherical collection of icy and comet-like bodies.

This theoretical realm, if proven to exist, would be the source of long-period comets with orbits spanning thousands of years. These comets are thought to be pushed into the inner solar system by gravitational interactions with neighboring stars or celestial objects, becoming visible as they approach the Sun and develop their characteristic tails. While the Oort Cloud remains a theoretical construct, it plays a crucial role in shaping the dynamics of our solar system and the occasional appearance of comets in our night skies, adding depth to our understanding of the outermost reaches of our cosmic neighborhood.

The Big Bang Theory

test article image
Getty Images

The Big Bang Theory is the prevailing scientific explanation for the origin of the universe. According to this theory, the universe began as a singularity, an incredibly hot and dense point, approximately 13.8 billion years ago. At this moment, all the matter, energy, and space in the universe were concentrated into an infinitely small and infinitely hot state.

Then, in a sudden and dramatic event, the universe started expanding rapidly, leading to the formation of galaxies, stars, and planets. As the universe expanded, it cooled down, allowing matter to coalesce and form structures. The evidence for the Big Bang Theory comes from a variety of observations, such as the cosmic microwave background radiation, the abundance of light elements, and the large-scale distribution of galaxies.

The Big Bang Theory has become the foundation of modern cosmology, explaining the evolution of the universe from its earliest moments to its current state. However, it is essential to note that the theory does not address what caused the Big Bang or what might have existed before it, leaving those questions still unanswered in the realm of theoretical physics and cosmology.