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Astronomy Essentials
Tonight
Visible planets and night sky guide late September and October
Visible planets and night sky guide. Full moon night has passed. But the Harvest Moon effect continues. What is a Harvest Moon anyway? Video and info here.
September 27, 2026
Space
JUICE mission to fly by Earth Monday: Details here
The JUICE mission will perform a flyby of Earth next week on September 28. The spacecraft is headed toward Jupiter's icy moons, where it will arrive in 2031.
Space
A black hole jet is aimed at us … and it’s in our galaxy
For the first time, scientists have discovered a microblazar, a black hole system in our own galaxy with a jet pointed at Earth. It lies about 12,000 light-years away.
September 27, 2026
Tonight
Watch for the daytime moon after sunrise this week
Watch for the beautiful daytime moon this week, a pale orb floating against a blue sky in the morning hours. Look west! You'll see it!
September 27, 2026
Moon Phases
The September full Moon is the Harvest Moon near Saturn
The September full moon - the Super Harvest Moon - happens overnight on September 26, 2026. It'll be near the planet Saturn.
September 26, 2026
Earth
Hurricane Nolo strengthening near Hawaii
Hurricane Nolo is strengthening south of Hawaii, and could bring potentially catastrophic flooding to the Big Island through the weekend.
September 25, 2026
Space
The Artemis Accords are rules for a new moon era
The Artemis Accords are a set of guidelines for peaceful space exploration. But questions remain about who makes the rules and controls space resources.
September 25, 2026
Astronomy Essentials
Neptune at opposition on September 26, 2026
Neptune at opposition -- when it's opposite the sun on the sky's dome -- comes on September 26, 2026. You'll need optical aid to spot it.
September 25, 2026
Human World
Space
Is there enough water on the moon for future cities?
Is there enough water on the moon for future cities? New estimates say there could be enough for smaller villages or towns, but not larger metropolises.
September 25, 2026
Astronomy Essentials
Seeing Saturn’s rings: Top tips for beginners
If you want to see Saturn's rings, late September and early October 2026 is a great time to look. Grab a telescope and read the tips found here!
September 25, 2026
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