TOPSHOT - NASA Administrator Bill Nelson speaks during a press conference for the OSIRIS-REx sample unveiling at the Johnson Space Center in Houston, Texas on October 11, 2023. A sample (on screen R) ...

X-Ray photoelectron spectroscopy (XPS) is one of the most important and widely used methods for determining surface chemistry of materials. Cryo-XPS, where the sample is cooled to temperatures below ...

When scientists finally cracked open the capsule from asteroid Bennu, they expected carbon, water-bearing minerals, and maybe ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. An early analysis ...

The content of fat is among the most vital parameters for the quality control of food and feed. Fat provides a substantial contribution to the nutritional value of a product; however, fats like milk ...

Decades-old air samples once collected for military surveillance have turned out to be an accidental time capsule of climate ...

A semen analysis can help your doctor diagnose fertility issues. A sample is looked at under a microscope to see how many sperm cells it contains, how they're shaped, and how well they move. (Photo ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Representative sampling and random sampling ...