Posts by 

Deanna Conners

How snowflakes get their distinct and various shapes

Snowflakes form in a myriad of different shapes from hexagonal plates to exquisite symmetrically-branching crystals, depending on the temperature and humidity.

Cloud streets: What are they? How do they form?

Cloud streets are long rows of cumulus clouds oriented parallel to the direction of the wind. See images of cloud streets here.

How to see the International Space Station in your sky

The International Space Station has been orbiting our planet since 1998. Here's how to spot the ISS soaring overhead in your sky.

Mount St. Helens’ 1980 eruption still causing destruction

On May 18, 1980, Mount St. Helens erupted, killing 57 people. Debris from the 1980 eruption caused a landslide that destroyed a road in 2023.

Leap years: Why 2022 isn’t one

If there were no leap years, eventually February would be a summer month for the Northern Hemisphere. The why and when of leap years, here.

Goblin sharks, ghost crabs and vampire bats, oh my!

Goblin sharks, ghost crabs and vampire bats: how did these spooky-sounding animals get their names? Learn more about them here.

What triggered Yellowstone’s Steamboat Geyser?

Steamboat Geyser in Yellowstone National Park began a new period of heightened activity in March 2018. It's had more than 100 major eruptions since then. Scientists want to know why.

Great Backyard Bird Count begins February 12

Show your love for birds by joining the 2021 Great Backyard Bird Count. It's free and easy to participate in this 4-day global event. Find out how here.

Another terrible year for wildfires and smoke in the US in 2020

Wildfires burned more than 10 million acres in the United States during the 2020 season. It was the worst season on record.

Ancient Maya civilization used advanced water treatment technology

The oldest known example of a water treatment system in the Western Hemisphere was recently discovered in Guatemala.

2024 EarthSky Fundraiser

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