Redian新闻
>
Astronomy Picture of Day: Venus: Just passing by
avatar
Astronomy Picture of Day: Venus: Just passing by# Astronomy - 天文
s*t
1
Venus: Just Passing By
Credit: Galileo Project, JPL, NASA
Explanation: Venus, the second closest planet to the Sun, is a popular way-point for
spacecraft headed for the gas giant planets in the outer reaches of the solar system. Why
visit Venus first? Using a "gravity assist " maneuver, spacecraft can swing by planets and
gain energy during their brief encounter saving fuel for use at the end of their long
interplanetary voyage. This colorized image of Venus was recorded by th
相关阅读
logo
联系我们隐私协议©2024 redian.news
Redian新闻
Redian.news刊载任何文章,不代表同意其说法或描述,仅为提供更多信息,也不构成任何建议。文章信息的合法性及真实性由其作者负责,与Redian.news及其运营公司无关。欢迎投稿,如发现稿件侵权,或作者不愿在本网发表文章,请版权拥有者通知本网处理。