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Earth
Reef fish survival threatened by motorboat noise
Reef fish exposed to motorboat noise can end up smaller and struggle to escape predators, says new research into dangerous underwater noise.
September 7, 2026
Sun
Sun news: Sun-stuff bursts could trigger strong auroras
Sun news September 7, 2026: A convoy of CMEs is racing our way. G1-G2 storms are likely, with G3 possible. Auroras may reach New York and London!
Astronomy Essentials
Tonight
Visible planets and night sky guide for September
Visible planets and night sky guide: Tomorrow before sunrise, look for bright Jupiter near the thin crescent moon. This is a can’t-miss celestial event!
September 7, 2026
Earth
These microbes in Antarctica don’t live anywhere else
Researchers have discovered that some microbes in Antarctica are unique to the icy continent and are found nowhere else on Earth.
September 6, 2026
Human World
Labor Day: Learn its history and traditions
Labor Day is a federal US holiday that falls on the 1st Monday in September and is considered the unofficial end of summer.
September 6, 2026
Human World
If we find life beyond Earth, how will nations respond?
If we ever find life beyond Earth, how will the nations of the world respond? A group of experts give 3 possibilities: cooperation, competition and isolation.
September 6, 2026
Constellations
Octans and Apus circle the south celestial pole
Octans and Apus are 2 constellations that you have to be in the Southern Hemisphere to see. Plus, Octans is home to the south celestial pole.
September 6, 2026
Space
Mars’ southern hemisphere is unusually hot deep underground
A new study from Caltech shows that Mars' southern hemisphere is much hotter than expected deep below the surface. Why is that?
September 4, 2026
Constellations
Cassiopeia the Queen ascends in September and October
Cassiopeia the Queen is an easy-to-find constellation. It has the shape of a W or M. Look for it in the north-northeast sky on September and October evenings.
September 4, 2026
Space
Saturn’s south pole decagon confirmed! A mysterious 10-sided figure
Saturn’s south pole is now known to have a giant, evolving 10-sided wave, similar to the Saturn north pole hexagon. Read more about it here.
September 3, 2026
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