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Earth
Space
We’re getting better at seeing asteroids that may hit Earth
Astronomers are getting better at spotting asteroids, such as the asteroid that hit Earth near the Philippines on September 5, 2024. Read more.
September 19, 2024
Sun
Sun news September 19: Beautiful jets and prominences
Sun news for September 19, 2024. It's been a calm day on the sun in terms of flaring, but prominences and jets have brought the excitement.
Astronomy Essentials
Tonight
Visible planets and night sky guide for September
Visible planets and night sky guide for September 2024. See pics and watch a video about Tuesday's partial lunar eclipse. Neptune's opposition this weekend..
September 19, 2024
Astronomy Essentials
Year’s fastest sunsets happen around equinoxes
The year's fastest sunsets are at the equinoxes, and the slowest are at the solstices. We're talking about how long it takes the sun to sink below the horizon.
September 19, 2024
Today's Image
Super Harvest Moon and eclipse pics here!
The Super Harvest Moon on September 17, 2024, was briefly darkened by Earth's shadow in a partial lunar eclipse. Check out some great photos of the event here!
September 18, 2024
Space
New Cloud Atlas of Mars for cloudspotting on the red planet
Want to do some cloudspotting on Mars? Researchers in Germany have created the new Cloud Atlas of Mars, with 20 years of images from the Mars Express orbiter.
September 18, 2024
Human World
Did social isolation drive Neanderthals to extinction?
New DNA studies of a Neanderthal from France support a theory that Neanderthals became extinct because their populations were isolated, leading to inbreeding.
September 18, 2024
Astronomy Essentials
Our top 10 stargazing tips for beginning astronomers
If you're new to observing the night sky, check out our top 10 stargazing tips for beginners. We'll help you explore and expand your love for astronomy.
September 18, 2024
Tonight
Equinox sun rises due east and sets due west
The 2024 September equinox occurs on September 22 at 12:44 UTC (7:44 a.m. CDT). The equinox sun rises and sets due east and due west.
September 18, 2024
Space
Comet A3 is brightening. Will it be the comet of the year?
Comet A3 Tsuchinshan-ATLAS survived its rumored disintegration and may be the brightest comet of the year this September and October. Finder maps here.
September 18, 2024
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