You have less than a week to prepare for the new tolling system on State Route 167 (SR 167). It’s the first change in tolling on the corridor in 17 years. It’s been the honor system since the HOT lane ...

Your immune system defends your body against illness and disease. This complex system comprises the skin cells, blood, bone marrow, tissues, and organs that — when working the way they should — ...

Solar System Planets. Astronomy articles on the eight planets, plus the two dwarf planets, Pluto and Eris. Great pictures of everything in the solar system. Updated daily.

Nov. 1, 2025 — Researchers discovered that altering the body’s natural rhythm can help protect the brain from Alzheimer’s damage. By turning off a circadian protein in mice, they raised NAD+ levels ...

The male reproductive system includes organs like the penis and scrotum that function in urination and reproduction. Sex hormones like testosterone are vital for puberty, sexual function, and sperm ...

The human skeleton has 206 bones and is divided into the axial skeleton and the appendicular skeleton. Your axial skeleton includes 80 bones, like those in the skull and spine, that run down the ...

The nervous system consists of the central nervous system (brain and spinal cord) and the peripheral nervous system (motor nerves, sensory nerves, cranial and spinal nerves, autonomic ganglia, and ...

In the Swedish school system, children go to school for at least ten years from the year they turn six, as mandated by the Swedish Education Act (link in Swedish). Sweden's long focus on education is ...

The new Learning Management System (LMS) will guide you through the entire Class 1 Learning Pathway. Track your progress, access course materials, and stay on top of your learning journey—all in one ...