Former President Obama's portrait went on display near the staircase to the presidential residence after it was unveiled in ...

Indigenous people gathered in Brasilia, Brazil for the annual Free Earth camp to demand the government pay more attention to ...

This photo gallery, curated by photo editor Anita Baca, highlights some of the most compelling images worldwide made or ...

Even the oldest and most stable of lithospheric structures can’t withstand geologic machinations deep within the Earth.