The earliest direct evidence of organisms pumping oxygen into Earth’s ancient atmosphere has been found in the fossilized remnants of bacterial slime, according to research that also gives scientists a new tool in the hunt for life on Mars.
December 12th, 1999
New ‘fingerprint’ of early life The Record Online
October 24th, 1999
A Mars of earthly dilemmas The Record Online
Is it right, or even inevitable, that space-traveling humans change untouched planets and make them more like the world they left behind?