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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
Earth
Would a Yellowstone supervolcano eruption end humanity now?
Yellowstone has undergone 3 massive super-eruptions in the past. If the Yellowstone supervolcano erupted today, would humanity survive?
September 24, 2026
Sun
Sun news: Fast solar wind has started to arrive
Sun news September 24, 2026: Fast solar wind from a coronal hole has started arriving. G1 storms and auroras are possible today.
September 24, 2026
Tonight
Why can’t I find the Big Dipper in September?
On northern autumn evenings, the famous Big Dipper lies low on - or even below - the northern horizon. You can use it to find Polaris, the North Star.
September 24, 2026
Astronomy Essentials
Tonight
Visible planets and night sky guide for September
Visible planets and night sky guide: Watch for the Harvest Moon this weekend. And see a video here about Harvest Moon science and folklore.
September 24, 2026
Astronomy Essentials
Full moon names by the month and by the season
Lists of common full moon names — both by month and by season — for North America. And a word about full moon names in the Southern Hemisphere.
September 24, 2026
Space
Baby exoplanet: Astronomers find the youngest world yet
Astronomers have discovered the youngest-known exoplanet so far, Elias 2-24 b. The baby exoplanet is twice the mass of Jupiter and 450 light-years away.
September 23, 2026
Earth
Hurricane Polo lurks off Mexico, now Category 4
Hurricane Polo has weakened to Category 4 as it moves north along Mexico's southwestern coast. It had strengthened from a tropical storm to Category 5 in a day.
September 23, 2026
Human World
Neptune discovered on this date 180 years ago
Read the fascinating story of the discovery of Neptune - 180 years ago - on September 23, 1846. It was the 1st planet to be discovered by using mathematics.
September 23, 2026
Space
Today's Image
Earth images from space: 13 incredible photos of our planet
Look at these Earth images from space. How does it make you feel about the planet you live on and about Earth's place in the solar system and cosmos?
September 23, 2026
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