First falcons born in Paris since 19th century

The first peregrine falcons to be born in Paris since the end of the 19th century have hatched at the top of a giant heating tower close to the Eiffel Tower, it was announced on Tuesday.

Microstructural improvements enhance material properties

Exquisite buildings like the Eiffel Tower were made possible because of advances in structural engineering design methods. Truss structures, like the Eiffel Tower, are highly efficient; they can carry the same loads as solid ...

Billion people invited to switch off lights

Around a billion people living in the world's major cities are being invited to turn off their lights at 8:30 p.m. local time on Saturday for "Earth Hour," described as the biggest mass campaign to demand action on climate ...

Earth Hour aims for hope in darkened world

Lights will go out around the world Saturday with hundreds of millions of people set to take part in the Earth Hour climate change campaign, which this year will also mark Japan's earthquake and tsunami.

Image: Third Bosphorus Bridge progress

These 17 images from the Sentinel-2A satellite show a year of progress on the Third Bosphorus Bridge in Istanbul, Turkey.

page 3 from 4