Solstice — Science definition
One of two days a year (around June 21 and December 21) when a hemisphere is angled most directly toward or away from the Sun, giving the year's longest or shortest day.
Where it is taught
- Seasons & Earth's Tilt — Earth, Moon & Solar System, Earth & Space Science, Grade 9
In use
Around June 21, the summer solstice, the Northern Hemisphere leans most directly toward the Sun, soaking up concentrated sunlight through long days — summer, with the year's longest day.
Seasons & Earth's Tilt