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Earth
Scientists discover a new tiger cat hiding in plain sight
Scientists studying the tiger cat have found 5 distinct species, revealing more diversity among these familiar-looking wild cats than previously known.
September 19, 2026
Astronomy Essentials
International Observe the Moon Night 2026 is tonight
International Observe the Moon Night is September 19, 2026. It's a global event for celebrating the moon. Here's how you can participate online or in person.
September 19, 2026
Astronomy Essentials
Tonight
Visible planets and night sky guide for September
Visible planets and night sky guide: Tonight is International Observe the Moon Night. And see a video about upcoming sky events.
September 19, 2026
Space
Newly formed moon crater is once-in-a-century discovery
In 2024, a space rock slammed into the moon, creating a new crater in the surface. The newly formed moon crater is about 728 feet wide and 141 feet deep.
September 18, 2026
Sun
Sun news: It’s official! First spotless day since February
Sun news September 19, 2026: It is now official: September 18 was the first spotless day of our sun since September 24, 2026.
September 18, 2026
Astronomy Essentials
Forms of aurora: Arcs, curtains, coronas and more
Here are some of the forms of aurora that you might see. Some are more common, such as diffuse glows, while others are a sign of a big geomagnetic storm.
September 18, 2026
Sun
Yes, there’s an aurora season, and it’s here
There's an aurora season around the equinoxes, due to the way the magnetic fields of the sun and the Earth work in conjunction with sun-Earth geometry.
September 18, 2026
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
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
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