BBC Knowledge AUGUST 2017

(Jeff_L) #1
17

No. A neutron star has such an intense gravitational field
and high temperature that you could not survive a close
encounter of any kind. First of all, just getting onto
the surface of the neutron star would be problematic.
Its gravitational pull would accelerate you so much you
would smash into it at a good fraction of the speed of light.
Even before you arrived, the difference in gravitational pull
between your head and feet would already have ripped
your constituent atoms apart. Once there, though,
your atomic nuclei and their free electrons would impact
the surface with sufficient energy to spark thermonuclear
reactions close to the super-dense surface. You would
become a puff of gamma rays and X-rays, as your light
elements were transformed into a cloud of heavy elements,
neutrons and ultra-relativistic electrons. Even if you were
somehow magically transported onto the neutron star,
therefore avoiding this energetic impact, the million-degree
temperatures at the surface would vaporise (and ionise) you
immediately. The intense gravity would then flatten what
was left of you as you merged into the super-dense crust
of the neutron star. Under these circumstances, taking
a leisurely walk would be extremely difficult! AGu


COULD YOU WALK
ON A NEUTRON STAR?

MAMMALS BIRDS REPTILES

QUESTION OF THE MONTH
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