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Deanna Conners

How to spot ISS in your sky

A new map-based feature in NASA’s Spot the Station program makes it even easier to track the International Space Station as it passes over you.

Mount Hekla was called Gateway to Hell

Mount Hekla is Iceland’s 3rd most active volcano. A large eruption in 1104 earned it the moniker Gateway to Hell. Is Mount Hekla overdue for another eruption?

Clues to ancient earthquakes in caves

Stalagmites on the floors of caves in southern Indiana contain evidence of past earthquakes, scientists say.

Why Earth has 4 seasons

Some assume our planet’s changing distance from the sun causes the change in the seasons. That’s logical, but not the case, for Earth.

Tallest peak in the US Arctic is …

No one knew whether Mount Chamberlin or Mount Isto was taller. Now an aerial study – and a ski mountaineer – declare a winner.

More than 450 volcanoes in Ring of Fire

The Pacific’s Ring of Fire has 75% of the world’s active and dormant volcanoes, plus it’s prone to powerful earthquakes. Here’s why.

Man-made chemicals in deepest sea

Scientists have detected persistent man-made chemicals in crustaceans from the Mariana Trench and Kermadec Trench, deepest parts of the ocean ever sampled.

Top 10 new species of 2016

From a giant tortoise to a tiny beetle and an early hominid, this year’s top 10 new species list contains some exciting finds.

Eastern monarch butterflies at risk of extinction, scientists say

Populations of the charismatic orange and black monarch butterfly have plummeted. Will they be extinct in 20 years?

lava

Scientists reconstruct supervolcanic eruption

Scientists estimate that slow, dense pyroclastic flows blanketed the southwestern U.S. after the enormous eruption at Silver Creek 18.8 million years ago.