NASA's OSIRIS-REx mission to return samples of Asteroid Bennu to Earth. Credit: NASA Goddard Space Flight Center ...

CI chondrites are the most water- and volatile-rich of meteorites, with compositions similar to space rocks like Ryugu and Bennu. They are very porous and 'wet', with up to 20 percent of their weight ...

NASA's OSIRIS-APEX mission, which was one of 19 designated to be canceled by the Trump administration, has been saved from ...

A groundbreaking study of asteroid Ryugu has revealed something scientists never expected: water moved through its rocky ...

1803 年 4 月，美国特使门罗与法国签订《路易斯安那购买条约》： 以1500万美元（约合今日 3.4 亿美元 ）购得从密西西比河到落基山脉的 82.8 万平方公里 土地。 一夜之间，美国的领土几乎翻倍，从“东部小国”变成横跨大陆的“潜在强国”。

Ryugu’s samples reveal that water activity on asteroids lasted far longer than scientists thought, possibly reshaping ...

In April 2029, Apophis is predicted by NASA to come within 32,000 kilometers (20,000 miles) of the Earth's surface. Closer ...

Gold prices have shattered records in 2025 as global instability reshapes where nations and investors seek safety.

Scientists have found evidence of liquid water flowing through the asteroid Ryugu for over a billion years, challenging previous theories about water activity on asteroids.

As per a study led by researchers from the University of Tokyo, Ryugu preserved a “pristine record” of late water activity. The team studied the isotopes of lutetium and hafnium in their rock samples, ...

Aidan O'Brien's three-year-old can land the Group One on Champions Day at Ascot while Big Mojo, Trawlerman, The Lion In ...