330-million-year-old shark found in a Kentucky cave

"What we saw in the cave was amazing because just from the shape of the jaw we'll be able to find out more about how this species lived," the paleontologist said.

• Jan 30, 2020

2,000 years of Earth's climate in one simple chart

What were global temperatures the year Jesus was born, and how do they compare with the modern world? There's now a chart for that.

• Jan 30, 2020

2,000 years of Earth's climate in one chart

The "Warming Stripes" went viral for their stark visual representation of unprecedented global warming. Now the creator is out with a new version that covers more than 2,000 years of history — but beware of misleading copycats circulating online that don't tell the real story.

• Jan 29, 2020

NASA bids farewell to Spitzer Space Telescope

After more than 16 years of trailblazing infrared observations, NASA is pulling the plug on one of its "Great Observatories."

• Jan 29, 2020

Ship linked to Bermuda Triangle mystery found 95 years later

The SS Cotopaxi was thought to have disappeared in the Bermuda Triangle in 1925.

• Jan 29, 2020

Satellites avoid collision in Pennsylvania sky

The satellites appeared to be on a collision course earlier in the week.

• Jan 29, 2020

SpaceX launches more Starlink satellites

The latest batch of Starlink internet relay satellites will push SpaceX's total to 240 orbiting relay stations.

• Jan 29, 2020

Does planting a tree really offset your carbon footprint?

Airlines are planting trees to offset their carbon emissions – but does that action live up to the hype?

• Jan 28, 2020

Amazon workers criticize company on climate despite job risk

Employees are calling out Amazon's record on climate change despite a threat of job losses for speaking out.

• Jan 27, 2020

Nature up close: Are humans really the smartest species?

Attributing human actions and thoughts to non-human animals that appear to mimic our behavior may be fanciful, but we may be getting it backwards

• Jan 25, 2020

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