Question

una pregunta en inglés de ciencia

Answer 1

Respuesta:

What is the universe made of? Astronomers face an embarrassing conundrum: they don't know what 95% of the universe is made of.

Explicación:

Answer 2

Respuesta:

Explicación:

What is the universe made of? Astronomers face an embarrassing conundrum: they don't know what 95% of the universe is made of.