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How to see Earth’s shadow at sunrise and sunset
Just before sunrise and after sunset, you can spot Earth's shadow. Look west at sunrise and east at sunset. Learn more about Earth's shadow here.
November 26, 2023
Are some modern earthquakes aftershocks from the 1800s?
Scientists examined modern-day earthquakes in 3 regions of North America and found that some are aftershocks from the 1800s.
November 20, 2023
Kelvin-Helmholtz clouds look like ocean waves
Kelvin-Helmholtz clouds - aka billow clouds or shear-gravity clouds - can sometimes look like ocean waves. Check out these photos of them!
November 16, 2023
What’s a green flash and how can I see one?
Have you ever seen the green flash from a setting sun? Learn how to see one here, plus how they appear, and enjoy some great photos!
November 15, 2023
Are 2 huge blobs inside Earth due to an ancient impact?
A new study from an international team of researchers says that 2 huge blobs inside Earth came from the collision with the planet Theia billions of years ago.
November 13, 2023
Iceland braces for eruption of Fagradalsfjall volcano
Iceland declared a state of emergency on November 10, 2023, near Fagradalsfjall volcano, dormant for 800 years until 2021. Now it looks poised to erupt again.
November 11, 2023
Bird names poised for a change, say ornithologists
The American Ornithological Society announced that it will be changing the bird names for some 70 to 80 bird species. Here's why they're doing it.
November 2, 2023
A fogbow is cousin to a rainbow
A fogbow is like a white rainbow. It's made by much the same process as rainbows but with a fog's smaller water droplets instead of larger raindrops.
November 2, 2023
Anticrepuscular rays: How to see them
If you want to see anticrepuscular rays, look carefully opposite the direction of the sun. They are most often seen at sunrise or sunset.
November 1, 2023
Bats, a spooky season icon, are our lifeform of the week
Bats might be spooky, but they pollinate flowers, control insect pests, and have inspired scientists to improve human lives in many ways.
October 31, 2023
