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Space
Planisphere: Your friend to find stars and constellations
A planisphere is an easy-to-use tool that can help you learn the night sky. Align the date and time to see what constellations and stars are overhead.
November 28, 2025
Sun
Sun news: Far-side firestorm spins into view
Sun news November 28, 2025: A fiery new region rotating onto the disk blasted 15 C flares, signaling the recent far-side solar activity is shifting into view.
Astronomy Essentials
Tonight
Visible planets and night sky guide for November and December
Visible planets and night sky guide. The moon's at 1st quarter today. It rises around noon and sets around midnight. Look for it near the planet Saturn.
November 28, 2025
Human World
Don’t worry about overeating at the holidays, says dietitian
A day of overeating at the holidays isn't harmful, a dietitian explains. Here's how to enjoy your holiday meal without worry.
November 27, 2025
Earth
Yellowstone earthquakes rattle underground ecosystems
Yellowstone earthquakes are regular occurrences in this geologic hotspot. Scientists have studied how they change life underground.
November 27, 2025
Earth
Human World
Looking back on the 2025 Atlantic hurricane season
The 2025 Atlantic hurricane season was less active than normal in terms of total storms, but more active than average in terms of overall storm energy.
November 27, 2025
Space
Tally of near-Earth asteroids passes 40,000
Astronomers announced in November 2025 they've now discovered over 40,000 near-Earth asteroids. What risks do these pose to Earth?
November 27, 2025
Constellations
The constellation Andromeda the Chained Lady
The constellation Andromeda the Chained Lady is most famous for containing M31, the Andromeda galaxy, the closest large spiral galaxy to the Milky Way.
November 27, 2025
Space
Before their big smashup, Theia and Earth were neighbors
A new study suggests that Theia and Earth were neighbors in the early solar system about 4.5 billion years ago. Then their epic collision destroyed young Theia.
November 26, 2025
Space
OSIRIS-APEX mission to asteroid Apophis soars past Earth
NASA's OSIRIS-REx mission to asteroid Bennu was a great success. Now, the spacecraft has been renamed OSIRIS-APEX and is heading to asteroid Apophis.
November 26, 2025
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