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Astronomy Essentials
Tonight
Visible planets and night sky guide for October and November
Visible planets and night sky guide. This evening, look for the thick, bright, waning gibbous moon near the Pleiades star cluster and the brightest star in Taurus the Bull, Aldebaran.
October 27, 2026
Constellations
Lacerta the Lizard, home to a blazar
Lacerta the Lizard is a small, dim constellation in the autumn sky that contains a blazar, an active galactic nucleus with a jet aimed toward Earth.
October 27, 2026
Human World
Why do dolls creep us out? It’s the uncanny valley effect
For many, dolls creep us out. Their lifelike - but not quite human - aspect can trigger the uncanny valley effect. Hear more from scientists about this effect.
October 27, 2026
Sun
Sun news: Huge prominence adorns our star
Sun news October 27, 2026: A huge prominence adorned our sun's northeast horizon over the past day. It came from the sun's far side.
October 26, 2026
Moon Phases
How to understand moon phases: 4 tips!
As the moon orbits Earth, we see varying fractions of its day side. Here are four tips for understanding moon phases.
October 25, 2026
Astronomy Essentials
Hunter’s Moon falls on October 25-26, with Saturn nearby
The 2026 October full moon is the Hunter's Moon. It falls around October 25-26. It's near the planet Saturn and in front of the constellation Aries the Ram.
October 25, 2026
Human World
Pentagon UAP files part 7: Silent black triangles
The 7th batch of the Pentagon UAP files was released on October 23, 2026. The documents include reports of more triangle craft and more.
October 25, 2026
Space
Is the Mars Grand Canyon still tectonically active?
Researchers said the red planet is still tectonically active today. A team found the epicenter of a marsquake at the Grand Canyon of Mars.
October 25, 2026
Astronomy Essentials
Olbers’ paradox asks ‘Why is the night sky dark?’
Olbers' paradox asks why is space dark if the universe is filled with stars. The answer has to do with traveling light and red-shifting colors.
October 23, 2026
Space
1st photo of Earth from space, 80 years ago
On October 24, 1946 — 80 years ago — a movie camera on board a V-2 rocket captured the 1st-ever photo of Earth from space.
October 23, 2026
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