Should the eruption occur during the day, then ash could block out the sun for 'hours', with Alaska Volcano Observatory (AVO) ...

The United States of America has natural vegetation and fascinating landscapes that enrich its splendid history. Proper lake ...

NASA's next Mars chopper concept could do far more than fly — it could help unlock the planet's watery past, reveal signs of ...

Once home to a thriving Jewish majority, Thessaloniki holds fragments of a lost world. One traveller's journey to find them ...

The episodic summit eruption of Kīlauea in Halemaʻumaʻu Crater has been going on for more than 3 months now, with 16 eruptive ...