Volcanoes rarely erupt without warning, but the signals they send are often subtle, scattered and easy to miss. Now a new line of research suggests the forests that cloak many volcanoes quietly record ...

NASA released satellite images showing the activity of Ethiopia’s dormant Hayli Gubbi volcano, which marked its first recorded eruption on November 23. The Hayli Gubbi volcano in northern Ethiopia ...

On some Mars images, Olympus Mons does not look dramatic at first glance. It sits there quietly, a wide pale rise against rust coloured plains. No sharp peak. No obvious violence. Only when scale is ...