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Earth
The secrets of noctilucent clouds
Noctilucent cloud season has returned to Earth’s high latitudes. These "night-shining" clouds are beautiful ... photos here.
June 20, 2021
Space
Is Darth Vader wearing a spacesuit?
Is Darth Vader wearing a spacesuit? On this Father's Day 2021, we take a look at the suit of the most infamous father from a galaxy far, far away.
June 20, 2021
Tonight
Sun enters Gemini on June 21
The sun enters Gemini on June 21, 2021, at about 15 UTC. We mean the constellation - not the astrological "sign" - of the zodiac.
June 20, 2021
Earth
World’s best dads: Bullfrog protects tadpoles
Watch, as this African bullfrog protects tadpoles in a drying pool. How does he save them? Check out this video, and happy Father's Day!
June 20, 2021
Astronomy Essentials
Summer solstice tale of 2 cities
On the June solstice, the sun will set at the same time in New York City and St. Augustine, Florida. But New York will have an hour more of daylight. Why?
June 19, 2021
Space
Astronomers spot largest rotation in the universe
Astronomers have found the largest rotation in the universe by analyzing red and blue shifts in galaxies funneling along filaments in the cosmic web.
June 18, 2021
Earth
Human World
The sad fate of krill in the Southern Ocean
Krill in the Southern Ocean are projected to decline about 30% this century, due to human-driven climate change. But natural variability also plays a role. A new study tries to tease out the difference.
June 18, 2021
Tonight
Moon and Spica June 18, 19, 20
On June 18, 19 and 20, 2021 - as sunset closes the curtain on day, and the darkening sky reveals a myriad of far-off suns - look for the moon and Spica.
June 18, 2021
Space
Methane on Enceladus: A possible sign of life?
Something is producing a lot of methane in Enceladus' ocean. Could it be life? While not proven yet, a new study by a team of biologists seems to support that exciting possibility.
June 18, 2021
Human World
Poison mushrooms: How to tell
A popular adage among mushroom foragers is, “you can eat any mushroom ... once.” Some wild mushrooms are poisonous and will make you sick. A few can kill.
June 17, 2021
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