A mystery 300-mile wide formation lurking beneath Australia may be the largest asteroid impact crater on Earth

Tech Insider
An artist's illustration shows an asteroid causing a large blast as it crashes into Earth
An artist's impression of what an asteroid impact on Earth would look like.

Mark Garlick/Science Photo Library/Getty Images

These 14 ocean species have already gone extinct. A dozen others will probably disappear in our lifetime.

Tech Insider : Environment
Hawksbill turtle
People look at a 16-year-old critically endangered Hawksbill turtle after releasing it into the sea at the Sea Turtle Conservation Center east of Bangkok August 10, 2010.

Chaiwat Subprasom/Reuters

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