Science and Discovery

Longest Day

1 article

View of Earth from space showing the Northern Hemisphere tilted towards the sun, symbolizing the summer solstice and the longest day of the year.
Cosmos & Space

Summer Solstice brings Northern Hemisphere its longest day

In London, the summer solstice on June 21 delivers a mere two seconds more daylight than the day after, according to Explainingscience.

Marcus Cole·June 21, 2026