Нужно решить инглиш. Училка-тварь кинула поздно

The universe may be a safer place for planet Earth than astronomers have thought (здесь нет времени для past simple и нет действия в для past perfect) A new survey has found (нам важен результат и тут по смыслу не подходит пассивный залог) that there are far fewer dangerous asteroids hurtling through space that can (тут вероятность действия и речь не о
Previously, astronomers had estimated (это действие было совершено до другого действия в тут возможность в здесь нет времени для past simple и нам важен результат самого действия) that the total number of potentially devastating asteroids is about half the earlier estimates - about 700.

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