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In the fall, the leaves of some trees turn yellow, orange or red. The bright colors are wonderful to behold. But do they have some hidden purpose?
This short video puts modern extinctions in context by comparing them with Earth’s 5 previous mass extinctions.
Lamnid sharks and tuna have similar physical traits that make them top ocean predators. But, a new study says, they took very different evolutionary paths.
“Sea ice really is their platform for life. They are capable of existing on land for part of the year, but the sea ice is where they obtain their main prey.”
Autumn is connected in Chinese thought with the direction west, considered to be the direction of dreams and visions.
There were more than a dozen wildfires burning in California, as of September 20.
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.
Summertime sea ice in the Arctic reached a minimum on September 10 (unless it goes lower still). It’s now tied for the second-lowest minimum in the satellite era.
On the day of the equinox, the center of the sun would set about 12 hours after rising – given a level horizon, as at sea, and no atmospheric refraction.
Satellite images of the crack in Antarctica’s Larsen C ice shelf. If it breaks off, it’ll make an ice island in the Southern Ocean as large as one of the smallest U.S. states.
Photos of 2016’s beautiful Harvest Moon from the EarthSky community.
The secret life of urban rats.
An extremely strong El Niño was in progress earlier this year. Historically, some are followed by a La Niña, but ocean temps suggest … not this year.
The record-warm August continues a streak of 11 consecutive months that have set new monthly high-temperature records.
What would Earth be like if all of its ice melted? New short video from the guys at AsapSCIENCE, featuring Bill Nye.
Native plant diversity in forests of northern North America is declining due to an invasion by earthworms introduced hundreds of years ago from Europe.
After a rapid assessment, scientists have concluded that climate change increased chances of the August record rains in Louisiana by at least 40%.
The scientists who discovered it in the highlands of northern Greece named it Adonis, for the Greek god of beauty and desire. It’s more than 1,000 years old.
Evolutionary biology can explain skunks’ striking appearance, but only chemistry can get rid of the smell.
The international moratorium on whale-hunting is still in place, but – good news – some whales are coming off the U.S. endangered species list.
Black Moon on September 30?
Star party ahead