1. Stephen Hawking has warned that humans will only survive if we leave Earth and venture intospace.
斯蒂芬·霍金发出警告，如果人类离开地球到太空开拓新的疆域才有继续生存下去的可能。
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2. The agency will venture further out into space with newmissions, including the Solar Dynamics Observatory, launching in February tobetter understand the sun's influence on Earth.
3. The agency will venture further out into space with newmissions, including the Solar Dynamics Observatory, launching in February tobetter understand the sun's influence on Earth.
