Comets form 'breeding ground' for complex organics

The evidence is piling up that the building blocks of life could have been brought to Earth by comets, after emerging in the dust of interplanetary space.

Wide binary stars may have started out as triplets

The old adage, ‘two’s company three's a crowd’ could also be true for wide binary star systems. 

Scientists warn over ocean acidity

Manmade CO2 emissions over the last 100 to 200 years have already raised ocean acidity way beyond its normal natural range, says an international team of scientists.