One of the basic objects of a flight path planner is to plan a route through threat space to accomplish mission objectives, at the same time the route should satisfy mission planning constraints.

轨迹规划的一个最基本目标是规划飞机通过威胁空间并实现任务目标的飞行轨迹。

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There are just two hydrogen atoms per cubic centimeter on average in space, which poses no threat to spaceships traveling at low speeds.

太空中平均每立方厘米只有两个氢原子，这对低速飞行的宇宙飞船不构成威胁。

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The scope of work covers it services to enhance the survivability of space intelligence and threat assessments.

工作范围包括IT服务，以提高空间情报的生存能力和威胁评估。

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Every organization has a choice: They can become a victim of cyber attack and pay the cost of recovery, they can rely on quick reactions to changes in the threat space to ensure that they survive the next attack, or they can predict the next escalation in attacks and invest early in the defenses required to avoid ever becoming a victim.

FORBES: In Cyber, Losers Ignore, Survivors React, and Winners Predict

For those same reasons, I do not view iCloud as a major threat in the business space.

FORBES: Written by Jesse Lipson

Dark storm clouds and the threat of lightening are keeping space shuttle Discovery on the ground.

NPR: NASA Sets New Discovery Launch Date for July 4