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Today's Image
Huge new Webb image is chock-full of space delights
ESA has unveiled a spectacular new Webb image. One of the largest shots yet, it features protostars, jets, distant spiral galaxies and a gravitational lens.
September 17, 2026
Earth
1st adult T. rex trackway found by high school teacher
A high school teacher discovered 4 footprints that make up the 1st-ever known T. rex trackway. He discovered it at Hell Creek Formation in North Dakota.
September 17, 2026
Astronomy Essentials
Tonight
Visible planets and night sky guide for September
Visible planets and night sky guide: Look for the waxing crescent moon near red Antares this evening. And see a video explaining the equinox.
September 17, 2026
Astronomy Essentials
See the year’s fastest sunsets and sunrises around equinoxes
The year's fastest sunsets and sunrises happen around the equinoxes, and the slowest sunsets and sunrises happen around the solstices.
September 17, 2026
Astronomy Essentials
Equinox fun: Track the sun’s shift now until the solstice
On this equinox, start tracking the sunset point on your western horizon. You'll see a mighty shift between now and the June solstice.
September 17, 2026
Astronomy Essentials
2026 September equinox: All you need to know
The September equinox is almost here! Autumn for the Northern Hemisphere. Spring for the Southern Hemisphere. Here's all you need to know.
September 17, 2026
Sun
Sun news: A near-spotless day on our star
Sun news September 17, 2026: Only 1 sunspot remains, and it's about to leave. Will tomorrow bring the 1st spotless sun since February 24? Stay tuned!
September 17, 2026
Earth
Wildfires near the South Pole burned 90 million years ago
Researchers have found evidence in a sediment core in Antarctica that wildfires near the South Pole were a regular occurrence some 90 million years ago.
September 16, 2026
Space
The rings of Chariklo are unexpectedly dynamic and changing
New observations by the James Webb Space Telescope show that the rings of Chariklo, a Centaur in the outer solar system, changed over a period of a few years.
September 16, 2026
Astronomy Essentials
Why is planet Venus so bright in Earth’s sky?
You can't miss dazzling Venus after sunset! It's the 3rd brightest object in the sky, after the sun and moon. But why is Venus so bright?
September 16, 2026
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