Uljas universumi

Scientists try to trace the whereabouts of the Milky Way for the past 13.6 billion years, in an attempt to get to the bottom of the mystery surrounding its slow demise.

Once thought to be an inevitable disaster, scientists now have the technology to prevent asteroids from hitting the Earth. How are they working to do this?

For four years, the Messenger space probe sent images of Mercury, the solar system's smallest planet, closest to the Sun. Could it threaten life on Earth?