The space physicist on a mission to discover why Mercury has shrunk
As planets go, Mercury is a world of extremes – and one that doesn’t always make a great deal of sense. Its iron core is absurdly and inexplicably huge. Despite…
Huge asteroid impact may have knocked over Jupiter’s largest moon
The solar system’s largest moon, Ganymede, alongside Jupiter in a picture taken by NASA’s Cassini spacecraftNASA/JPL/University of Arizona A massive collision billions of years ago may have dramatically reoriented Ganymede,…
Europa’s underground ocean seems to have the carbon necessary for life
Artist’s impression of Europa (foreground) with Jupiter to the right and the moon Io in the distance.NASA/JPL-Caltech The ocean inside Jupiter’s moon Europa may be carbonated – not in the…
Our solar system might be 1.1 million years older than we thought
Our solar system is over 4.5 billion years oldScience Photo Library/Alamy Astronomers have re-calculated the age of our solar system, and found it is very slightly older than we thought…
