Earth
The secrets of noctilucent clouds
Noctilucent cloud season has returned to Earth’s high latitudes. These "night-shining" clouds are beautiful ... photos here.
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.
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.
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!
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?
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.
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.
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.
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.
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.