Do you consider yourself a curious person? Curiosity is a strong desire to learn or know something. But according to researcher Perry Zurn, curiosity is not a singular thing. In fact, there may be at ...

This view of Mars' Valles Marineris hemisphere from July 9, 2013, is a mosaic of 102 Viking Orbiter images. At the centre is the Valles Marineris canyon, over 2,000 km long and up to 8 km deep. This ...