What is the densest substance in the universe?
osmium
diamond
core of the Sun
neutron star
A neutron star is a stellar remnant of a supernova. Neutron stars are very small, but extremely dense - with a radius of only about 12–13 km (7 mi), they can have a mass of about two Suns.
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Answers by country
osmium
diamond
core of the Sun
neutron star
answers
the Netherlands
45
Australia
177
Greece
35
Canada
111
the United Kingdom
524
Austria
163
Unknown
66
Germany
1159
Poland
17191
the United States
1300
South Africa
39
Switzerland
91
Malaysia
65
Singapore
58
India
1744
Ghana
33
the United Arab Emirates
36
Pakistan
171
the Philippines
160
Nigeria
134