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Space
JUICE mission to fly by Earth next week! 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.
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
Today's Image
The red planet shows strange swirls of purple and pink
Mars Express captured this view of the red planet showing it in less familiar purple, pink and blue shades. Read why the red planet looks purplish.
September 24, 2026
Space
Curiosity rover insights after 5000+ sols on Mars
Curiosity rover has now spent 5,000 sols — the equivalent to 5,000 Martian days, or more than 14 years — on Mars. Here's a look at some of its discoveries.
September 24, 2026
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