Professor Vassilis Angelopoulos, head of NASA's mission studying solar storms in the Earth's magnetic field, observes the mechanism by which the solar wind distorts the Earth's magnetic field and how this leads to the arrival of big energy loads on Earth

You can spend the holidays in a spiritual or secular atmosphere on the islands of Santorini, Mykonos and Corfu or at the monasteries of Meteora, honouring both religious and local traditions

Respondents believe that current Prime Minister Antonis Samaras is more appropriate for Prime Minister and that New Democracy will better protect Greek interests in Europe