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Earth
Will fall migration 2026 bring a billion bird night?
Will we see a billion bird night during fall migration this year? And get tips on how you can help birds by turning off exterior lights.
September 9, 2026
Earth
Fall hummingbird migration in progress across North America
The fall hummingbird migration typically lasts from August through October. Spot the birds in every U.S. state and Canadian province as they travel south.
September 9, 2026
Sun
Sun news: Strike two! Sun-blasts keep arriving
Sun news September 9, 2026: Strike two! A second CME sparked another G1 storm last night. More are arriving today, so G2 storms and auroras are possible.
September 9, 2026
Astronomy Essentials
Tonight
Visible planets and night sky guide for September
Visible planets and night sky guide: Look for 3 bright planets in the early morning sky: Saturn, Mars and Jupiter, along path the sun travels during the day.
September 9, 2026
Tonight
Orion’s Belt points to Sirius on September mornings
Use Orion's Belt to find Sirius, the sky's brightest star. In 2026, Jupiter is in the same region, outshining even Sirius.
September 9, 2026
Astronomy Essentials
Human World
How many stars can you see on a moonless night?
Have you ever wondered how many stars are visible on a given night? It depends on factors including how dark your sky is and what your age is.
September 9, 2026
Space
Small asteroid hit Earth’s atmosphere Sunday near Australia
A small asteroid impacted Earth's atmosphere harmlessly on Sunday. Scientists spotted it just 6 hours earlier. It was the 13th asteroid spotted before impact.
September 7, 2026
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
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
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