Core articles
What happens when a star runs out of hydrogen to fuse?
A star spends the vast majority of its active life in a state of remarkable equilibrium, a long, steady burn we call the...
What occurs in the core of main sequence stars?
The heart of any star residing on the main sequence is a furnace of incomprehensible power, a region where the immense c...
Why in the core of red Super giants nuclear fusion restarts but not in the core of red giants?
The shift in a star's life from a main-sequence star to a swollen, luminous giant involves dramatic internal restructuri...
What is hidden inside the earth?
The planet beneath our feet is not a simple ball of rock and molten metal; it is a dynamic realm layered with secrets, w...
What is the core of a massive star?
The heart of any star, whether it is a modest, long-lived dwarf like our Sun or a spectacular, short-lived giant, is its...
What creates the magnetic field that surrounds the planet?
The magnetic field that envelops our planet is not a static shield generated by a giant, permanent magnet deep inside th...
Why nuclear fusion restarts but not in the core of red giants?
The transformation a star undergoes when it swells into a red giant involves a fascinating cosmic paradox: fusion activi...
How hot are the cores of stars?
The center of a star is the universe’s most extreme furnace, a place where matter is pressed and heated to conditions th...
What causes Earth’s magnetic field reversals?
The Earth’s magnetic field, the invisible shield generated deep within our planet, is not a constant feature. Periodical...
What triggers the initial implosion of a core-collapse supernova and what triggers its explosion?
The death of a massive star culminates in one of the universe’s most spectacular and energetic events: a core-collapse s...
What triggers a type II core collapse supernova?
Stars don't just wink out; the most massive ones end their lives in a cosmic cataclysm known as a **Type II supernova** ...
What element is fused in the core of a star?
The engine driving a star's brilliance and keeping it from collapsing under its own immense gravity is a process called ...
What is the process of the core collapse?
The final moments of a truly massive star—one significantly larger than our Sun, often eight times its mass or more—invo...