Astrobiology

Under the bright lights of an aging sun

Life as we know it on Earth is linked to our star, the Sun, which provides our planet with just the right amount of heat and energy for liquid water to be stable in our lakes, rivers and oceans. However, ...

Jul 04, 2014
4.5 / 5 (14) 10

Looking for life in all the wrong places

(Phys.org) —Scientists have long focused their search for extraterrestrial life on Earth-like planets – but that may be a mistake, according to a McMaster researcher.

Feb 03, 2014
4.3 / 5 (25) 29 | with audio podcast

Astro-virology

In HG Wells' 'The War of the Worlds', the invading Martians were beaten by that most unassuming of combatants – the common cold. Could the reverse happen and alien viruses pose a threat to human astronauts ...

Nov 29, 2013
4.4 / 5 (8) 1 | with audio podcast

Cosmic rays zap a planet's chances for life

Mysterious cosmic rays constantly bombard Earth from outer space. Now scientists find these energetic particles could limit where life as we know it might exist on alien planets.

Nov 12, 2013
4 / 5 (16) 8 | with audio podcast