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Space.com
31 分钟
Comets probably delivered Earth its water long ago, new study reveals
Water. All life on Earth requires it in some way or another, and it's hard to miss that roughly 70% of our planet's surface ...
6 小时
on MSN
Could comets, asteroids be responsible for Earth's rich water reserves? New Nasa study ...
Scientists have reevaluated the water composition of Comet 67P, finding it surprisingly similar to Earth's oceans. This ...
Space on MSN
1 天
Behold! These gorgeous never-before-seen space images are from a NASA space telescope that ...
NASA's Wide-field Infrared Survey Explorer (WISE) spacecraft launched to Earth orbit in 2009 and was placed in hibernation in ...
5 小时
on MSN
The water on Earth might have been delivered from space by comets billions of years ago
The water on Earth might have been delivered from space by comets billions of years ago - NASA scientists say Jupiter-family ...
1 天
on MSN
NASA Reveals Jupiter Comets May Have Brought Water to Earth
Scientists have revived the theory that short-period comets could have played a crucial role in filling Earth's oceans with ...
techexplorist
10 小时
Water on comet has a similar molecular signature to the water in Earth’s oceans
The origin of Earth’s abundant liquid water is still debated. Research suggests some water came from volcanic vapor that ...
9 小时
on MSN
Special delivery: New study suggests water came to early Earth via comets
Scientists uncovered new insights regarding the potential role of comets, particularly Comet 67P/Churyumov-Gerasimenko, in ...
1 天
on MSN
Asteroid burns up before hitting Earth creating 'fireball in the sky': See video
A "harmless" asteroid burned up Tuesday night above northern Siberia in Russia, creating a blazing fireball in the sky ...
USA Today
11 天
Asteroids pass by each day. Luckily, large asteroid crashes are uncommon.
That is roughly the same width as the entire state of Arizona. Within the last few years, NASA has taken steps to protect ...
2 天
on MSN
NASA-Led Team Links Comet Water to Earth’s Oceans
Scientists say cometary dust affects interpretation of spacecraft measurements, reopening the case for comets as potential ...
Interesting Engineering on MSN
1 天
Jupiter comet’s water matches Earth’s oceans, may have brought water to globe: NASA
Comet 67P's water has the same molecular signature as Earth's oceans, suggesting it may have contributed to Earth's water ...
2 天
on MSN
Fourth asteroid of the year hits Earth's atmosphere. Here's what to know
Designated as COWECP5, the asteroid burned up in the atmosphere as it streaked across the Eastern Siberia sky around 11:14 ...
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