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Posts by
Eleanor Imster
2017 ozone hole smallest since 1988
This year's ozone hole peaked in September at its smallest observed extent since 1988, due to an unstable and unusually warm Antarctic vortex in 2017.
November 7, 2017
Twin Yellowstone super-eruptions altered global climate
The Yellowstone supervolcano's last eruption wasn't a single event, but 2 closely-spaced eruptions that put the brakes on a natural global-warming trend, says a study.
November 2, 2017
Photos: Observe the Moon Night
Saturday night is International Observe the Moon Night, and EarthSky community members from around the world sent photos, reminding us that we all see the same moon.
October 28, 2017
A potential human habitat on the moon?
A new study says a hole in the moon’s Marius Hills region is the skylight of an underground lava tube large enough to house a city.
October 27, 2017
Star trails over Smiths Falls
Fiona M. Donnelly captured this image on October 21. 2017, in Smiths Falls, Ontario. She wrote, "Our Earth's rotation during a one-hour period."
October 27, 2017
Blue jets, red sprites and other flashes
In recent years, the International Space Station has given astronauts the chance to photograph transient luminous events - or TLEs - natural light shows produced at the tops of thunderstorms.
October 26, 2017
Lone fisherman at Echo Lake
A fisherman at Echo Lake, New Hampshire, surrounded by the colors of this year's beautiful autumn.
October 25, 2017
Alligators eat sharks
Jaws beware! Alligators might be coming for you, according to new research.
October 23, 2017
Watch ISS spacewalk October 20
Friday's is the last of 3 spacewalks by International Space Station astronauts this month.
October 19, 2017
