Geobulletin alpha

Oceanic hydrothermal vents and the origin of life 

A range of indirect evidence has been used to suggest that life originated deep in the oceans around hydrothermal vents, such as signs of early organic matter in association with Archaean pillow lavas. One particularly persuasive observation is that a … Continue reading →

Geology Fun Fact - Comet Tails 

Geology Fun Fact Myth: A comet's tail points towards the sun. A comet tail is only produced near a star (such as our sun). When the comet gets close enough to the sun, the solar winds push debris off of the comet, producing the tail. However, instead of following behind the comet, the tail always points away from the sun. So, if the comet is going towards the sun, the tail is behind it (as you would expect), but if the comet is going away from the sun, the tail is in front. Click [...]