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Guy Ottewell’s Astronomical Calendar 2024 is here
The popular and information Astronomical Calendar for 2024 by Guy Ottewell is available. It comes in either electronic or printed form. Learn more here.
September 28, 2023
Space is hard on the human body. Here’s what we’re learning
Space is hard on the human body and mind. Scientists are working to find ways to improve the lives and health of astronauts in space and back at home.
September 27, 2023
Caddisfly larvae are tiny rock masons. One built this case
A longtime contributor to EarthSky Community Photos, Sheryl R. Garrison, captured this cool image of a rock casing built by a caddisfly. Read Sheryl's story here.
September 26, 2023
SpaceX Starlink launches for September
Find the past and upcoming September 2023 launches for SpaceX's Starlink satellites here. Also, learn more about the Starlink constellation of satellites.
September 25, 2023
What is this weird golden orb from the seafloor?
Scientists have retrieved a weird object from the Gulf of Alaska. Dubbed the "golden orb," it's still a mystery. But now we know it's biological in origin.
September 25, 2023
Avi Loeb and ‘Oumuamua. Why the controversy?
Astronomer Jason Wright, of the blog AstroWright, explains why the recent work of Avi Loeb is seen as outrageous by some.
September 24, 2023
Did Europa’s carbon dioxide come from its ocean?
Two new studies suggest that Europa's carbon dioxide deposits originate in the moon's subsurface ocean. The results support a habitable ocean environment.
September 24, 2023
Pablo Neruda, a poet who embraced cosmic beauty
Pablo Neruda was a famous Chilean poet who wrote: "Every day you play with the light of the universe." Neruda died on this date, September 23, in 1973.
September 23, 2023
Extreme rainfall and flooding as Earth warms
Global warming puts more water vapor in Earth's atmosphere. The water vapor will fall out of storms in extreme rainfall and flooding.
September 22, 2023
There may be less water ice on the moon than we thought
We know there is water ice on the moon. But a new study suggests there is less of it in the moon's permanently shadowed regions than we previously thought.
September 21, 2023
