Astronomers from Oxford University in the UK have observed this rocky exoplanet covered in an ocean od water with substantial prozen deposits of carbon dioxide. The planet orbits a cool red dwarf....

Astronomers from Oxford University in the UK have observed this rocky exoplanet covered in an ocean od water with substantial prozen deposits of carbon dioxide. The planet orbits a cool red dwarf....

Illustration showing the evolution of the interior of the planet Mars. At the start of the sequence (left) Mars has a silicate magma ocean (orange) and metallic core (yellow). The second panel shows the core has evolved into a solid inner core and a ...

Illustration showing the evolution of the interior of the planet Mars. At the start of the sequence (left) Mars has a silicate magma ocean (orange) and metallic core (yellow). The second panel shows the core has evolved into a solid inner core and a ...

Illustration showing the evolution of the interior of the planet Mars. At the start of the sequence (left) Mars has a silicate magma ocean (orange) and metallic core (yellow). The second panel shows the core has evolved into a solid inner core and a ...

This is a composite of several sequences I did for Dave Brody at Magellan TV, for a documentary entitled Mars Calling. The brief was to show Mars transitioning from a watery planet to a dry one. I have no doubt Mars once had significant bodies of wat...

Artwork of the Chicxulub crater, shortly after its formation. This crater was formed 66 million years ago, off the coast of present-day Mexico, following the impact of an asteroid 10-14 kilometres across. The asteroid is widely believed to have provo...

Artwork of the Chicxulub crater, shortly after its formation. This crater was formed 66 million years ago, off the coast of present-day Mexico, following the impact of an asteroid 10-14 kilometres across. The asteroid is widely believed to have provo...