existence articles
What is the zone where life exists called?
The specific region on Earth where life, in all its forms, can be found is scientifically designated as the **biosphere*...
Was there a star before the universe?
The notion that we might find a star older than the entire observable cosmos sounds like science fiction, yet for a time...
Could the universe survive without stars?
The cosmos, as we know it, is illuminated by the fiery brilliance of countless stars, the engine rooms of creation that ...
Can we live without planets?
The very foundation of our search for life beyond Earth rests on the idea of a planet—a world orbiting a star, possessin...
Could life exist without an atmosphere?
The notion of life existing beyond the gentle envelope that cradles our world presents a profound biological puzzle. An ...
Do completely dark dark matter halos exist?
The idea that dark matter forms invisible scaffolding around galaxies is a cornerstone of modern cosmology, yet the spec...
How many universes could exist?
The sheer number of universes that might exist is one of the most captivating and least settled questions in modern phys...
How do they know that dark matter exists?
The universe, for all its blazing stars and sweeping nebulae, is dominated by something we cannot see. It is a substance...
Has it been scientifically proven that aliens are real?
The status of extraterrestrial life remains one of humanity’s most compelling unknowns, yet if one looks purely at hard,...
What are three reasons life on earth exists?
The genesis of biology on this world is not a single event but rather the sustained success of a set of extremely precis...
Does anything exist outside of galaxies?
The vastness between the great islands of stars we call galaxies is not entirely empty. While it might seem like a perfe...
How do we know dark matter exists in the halo?
The question of how we pinpoint the existence of something we cannot see hinges entirely on its gravitational footprint....
Was there anything before our universe?
Trying to conceptualize what existed before the beginning of our universe—the moment cosmologists refer to as the Big Ba...
Can ice exist in a vacuum?
The question of ice persistence in the near-total absence of atmosphere is not straightforward; it requires careful cons...