NASA rover preparing to take first Mars rock samples

The Perseverance Mars rover is preparing to collect its first rock sample from the site of an ancient lake bed, as its mission to search for signs of past life begins in earnest, NASA said Wednesday.

New material mimics strength, toughness of mother of pearl

In the summer, many people enjoy walks along the beach looking for seashells. Among the most prized are those that contain iridescent mother of pearl (also known as nacre) inside. But many beachcombers would be surprised ...

Circulation of water in deep Earth's interior

Phase H is a hydrous mineral that is considered to be an important carrier of water into deep Earth. We determined the dissociation condition of phase H by a theoretical calculation based on quantum mechanics. Phase H decomposes ...

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