When the sun’s UVB rays touch your skin, they interact with a protein called 7-DHC, converting it into vitamin D3. This ...

Rubble ridges, which have been built parallel to the shore, help retain some sand without fully stopping the natural flow in the lake.

The buck moon is the first full moon in July and will be one of the most clearly visible lunar events of the year.

July’s full 'Buck Moon' rises close to aphelion, making it the furthest full moon from the sun in 2025. The July full moon, known as the 'Buck Moon' will rise on Thursday, July 10 and put on a ...

During the course of a 13-second exposure, the International Space Station makes a trail of light in the sky as the station ...

Both UVA and UVB rays can damage your skin, just in different ways. One causes premature aging, the other is more prone to causing sunburn, DNA damage, and skin cancer.

Over the past decade, researchers have been puzzling through Pluto’s mysteries. Meanwhile, the New Horizons probe heads for interstellar space.

A warm afternoon on ancient Mars lasted about as long as a Silicon Valley internship. That is the sobering conclusion of a ...

Saturn is a planet widely recognisable for its iconic rings but a new study suggests Earth may also have had a similar ring system over 50 million years ago. As part of the research, 21 asteroid ...

14-day weather forecast for Port Sunlight.BBC Weather in association with MeteoGroup All times are British Summer Time (Europe/London, GMT+1) unless otherwise stated.

This article was originally published with the title “A Sun-dial as an Accurate Time-piece” in Scientific American Magazine Vol. 105 No. 5 (July 1911), p. 97 doi:10.1038 ...