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Is Sirius the most luminous star in the sky?
Sirius is the brightest star in Earth's sky because of how close it is to us. It's so bright you might see glints of different colors flashing from it.
March 4, 2026
Total lunar eclipse March 2-3: Last one for 3 years!
Overnight on March 2-3, 2026, there will be a total lunar eclipse of the full Blood Moon. Where will it be visible? See animations, charts and details here.
March 1, 2026
Lunar eclipse: Tips for watching and enjoying
A total lunar eclipse is coming up overnight on March 2-3, 2026. Here are some tips for watching and enjoying the total lunar eclipse.
March 1, 2026
A total lunar eclipse looks red. Why?
Coming up ... the total lunar eclipse of March 2-3, 2026. At maximum eclipse, the moon will look red. But why? Earth's atmosphere is the key.
March 1, 2026
What is orbital resonance? A dance between heavenly bodies
What is orbital resonance? It's a precise dance between heavenly bodies when their orbits line up, causing them to have specific synchronicities.
February 27, 2026
Latitude and the stars: Your location is key
Where you live determines what you see in the sky. Find charts here showing how the sky dome changes by latitude and the stars that are then visible in the sky.
February 24, 2026
Annular solar eclipse today! 1st solar eclipse of the year
On February 17, 2026, an annular solar eclipse was visible from remote parts of Antarctica and the Southern Ocean. Details here.
February 17, 2026
Year’s latest solar noon happens on February 11
February 11 has 2026's latest solar noon by the clock. Solar noon is a natural event, the instant when the sun is at its highest point for the day.
February 11, 2026
The stars Shaula and Lesath herald the coming spring
On February mornings, look for the celestial ducks returning to open water on the river of the Milky Way as the stars Shaula and Lesath make their appearance.
February 11, 2026
Jupiter’s moons: How to see and enjoy them
December 2026 and January 2027 are great months for seeing Jupiter's moons Io, Europa, Ganymede and Callisto with binoculars or a small telescope.
February 7, 2026
