Variable valve timing and variable valve lift may sound similar, but they're entirely different. Here are the differences between them and how they work.

Last year, our most detailed map of the universe yet suggested our understanding of dark energy has been wrong for decades. The shock result is reigniting the search for a better cosmic story ...

Effective stereo microscope selection depends on understanding application demands and the performance factors that affect 3D ...

Have you ever stopped to wonder how forecasters can predict the weather days in advance, or how scientists figure out how the climate might evolve under different policies?

Targeted to remain within long-term range of 60%-65%, though higher than prior year. Partnership Channel Growth -- Approached ...

A recent SpaceNews opinion article argued that it is time to “take astronomy off Earth.” The suggestion is straightforward: If satellite constellations and commercial space activity threaten ...

Researchers at the Department of Energy’s Oak Ridge National Laboratory have provided the first comprehensive analysis of the ...

One ball on a Plinko board is unpredictable. Drop a thousand and they form a near-perfect bell curve—one of math’s most powerful ideas for 150+ years.

Stock photo of simulated blood splatter - courtesy Getty ImagesCleaning blood from a violent crime scene can complicate crime ...

Since 1990, the United Nations (UN) has used the Human Development Index (HDI) to assess the development of a country using indicators of well-being ...

In economics, ideas rarely fail because they are wrong. More often, they fail because they are badly introduced, poorly structured, or concluded without conviction. Anyone who has sat through a policy ...

Survival analysis anticipates the expected lifespans of individuals as well as the timing of other events. Learn about its pros and cons.