Marianne Leonard

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Scientists Find 3 Billion Year Old Plankton Microfossils

Scientists have found 3 billion year old plankton microfossils in marine sediment rocks from the Farrel Quartzite in Western Australia. The …

NASA Mars Curiosity Rover Report -- June 7, 2013

How much do oceans add to world’s oxygen?

Most of Earth’s oxygen comes from tiny ocean plants – called phytoplankton – that live near the water’s surface and drift with the …

Earth Science

Nasa's Opportunity rover finds Martian water appropriate for the origin of life

Opportunity has made one of its greatest scientific discoveries so far. Clay minerals in a rock called Esperance clearly indicate that neutral water …

WIRED Space Photo of the Day 2013

PhysicsWhy Do You Feel Lighter at the Top of a Ferris Wheel?<p>Author: Rhett AllainRhett Allain<p>EcologyHow Plastic Straws Slip Through the Cracks of …

Supercontinent: how the world is moving together

This year is the 50th anniversary of one of 20th-century science's most important discoveries – the revelation that the land below us is on the move; …

Canadian accelerator produces a city’s-worth of medical isotopes overnight : News blog

The looming problem of a global medical isotope shortage is one step closer to a solution. A Canadian team has developed an upgrade that allows …