A single grain of sand could weigh as much as two rockets

The heaviest object in the universe - a neutron star · 6:00 · Video: Digital Astronaut · Watch at the source

In short: Neutron stars are among the densest objects in existence. This video explores how these celestial bodies form and visualizes just how much mass is packed into a microscopic amount of their matter.

A neutron star's density is so extreme that it defies everyday logic. To put this into perspective, a single grain of sand from such a star would weigh approximately 6,000 metric tons—roughly equivalent to the weight of two Saturn V rockets or over one million 100lb dumbbells.

The video explores the formation of these objects and distinguishes between different types, including pulsars and magnetars. It highlights that even a tiny fraction, such as 35 grains of sand, would equal about 214,000 metric tons.

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