Some astronomers believe the whole solar system formed from a single flat cloud of gas, while others believe it formed when a huge object passed near the Sun, pulling a stream of gas off of the Sun. Astronomers theorize the planets then formed from this gas stream.
Source: tatoeba (3955430)
Due to Triton's retrograde orbit, its density, and its composition, astronomers theorize that Triton was not originally a satellite of Neptune, but was captured by Neptune's gravitational pull, forcing it into an orbit around the planet.
Source: tatoeba (3957459)
It is a capital mistake to theorize before you have all the evidence. It biases the judgment.
Source: tatoeba (6303810)
Scientists theorize that stars, planets and the molecules they contain represent less than five percent of the mass-energy content of the universe. The rest is dark energy and dark matter, which cannot be directly detected.
Source: tatoeba (8764013)
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