That the universe is expanding has been known for almost a hundred years now, but how fast? The exact rate of that expansion ...

Though it might feel great to finish a workout and see "calories burned" pop up on your smartwatch, that number is often surprisingly inaccurate, with estimated error rates of 30%–80%. The watch's ...

A 91-year-old man was admitted to the hospital with weight loss, dyspnea, and eosinophilia. An anteroposterior chest radiograph obtained 2 months earlier showed bibasilar patchy opacities. A ...

A DNA nano-harvester stays on its track inside tumor cells, measuring cancer aggressiveness by detecting a key microRNA ...

A three-dimensional model of different organelle membranes created from high-resolution imaging data reveals that membranes vary in thickness. Darker colors indicate thicker regions of the membrane, ...

Objective: Colorectal cancer (CRC) ranks as the third most common global cancer. This study aims to explore the expression, function, and mechanism of DEAD-box helicase 49 (DDX49) in CRC. Methods: Pan ...

Battery cell voltage is the most fundamental measurement made on the cell. While on the surface measuring voltage seems easy, challenges and accuracy considerations must be understood before your cell ...

This work reveals metabolic pathways and molecular events mechanistically linked to B cell activation. Using an unbiased, comprehensive proteome profiling method and various functional validation ...

Cytotoxicity is a broad term that refers to the negative effects of chemical or environmental changes on cell health. Cells exposed to a cytotoxic stimulus may lose metabolic activity, experience ...

In 1964, China detonated a 22-kiloton nuclear device at a test site in the arid northwestern Xinjiang region—and the political fallout reached Washington. Worried about the prospect that many ...

In a world where powerful men seem free to behave corruptly, hypocritically, and with almost complete sexual incontinence, a Shakespearean play in which powerful men behave corruptly, hypocritically, ...

A new method for quantifying grandeur is reshuffling the pecking order of the planet’s most impressive peaks. Turns out Everest has steep competition. Mount Everest, left, tops out at 29,032 feet ...