Because diatom cell walls are comprised of opaline silica—essentially, glass—they remain preserved in sediments even after ...

Diatoms are a diverse group of microalgae known for their unique silica cell walls and significant ecological roles in aquatic and terrestrial environments. Recent research has focused on ...

"Diatoms are microscopic single-celled organisms that live in water and possess a cell wall made of silica (silicon dioxide). Thanks to its porous structure, it can absorb a wide variety of ...

"Diatoms are microscopic single-celled organisms that live in water and possess a cell wall made of silica (silicon dioxide). Thanks to its porous structure, it can absorb a wide variety of ...

an unknown prisoner scrawled a verse of Arabic poetry on his cell wall — an expression of pain and love amid his torment. "My country, even if it oppresses me, is dear. My people, even if ...

These messages, carved into cell walls, are one of the few tangible remnants of the lives lost or forever scarred within. They humanize the victims and preserve fragments of a history often ...

He listed the 56 miles of completed border wall and said 18 more miles will be ... 2,400 soldiers and identified more than 4,000 jail cells that could be used for migrant detention.

He listed the 56 miles of completed border wall and said 18 more miles will be built soon ... bases that can house 2,400 soldiers and identified more than 4,000 jail cells that could be used for ...