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Sun news April 18: Cluster of sunspot regions firing jets and flares
April 18, 2024, sun news. A big cluster of sunspot regions has been firing jets and flares all day. Three M flares keep sun activity at moderate.
April 18, 2024
Beta Centauri is one of the Southern Pointer Stars
Beta Centauri isn’t as famous as Alpha Centauri, but together, these brilliant Southern Hemisphere stars have inspired legends and guided mariners.
April 4, 2024
Betelgeuse is dimming again. When will it explode?
Will Betelgeuse have another period of noticeable dimming in 2024? Betelgeuse will explode as a supernova someday. When it does, it'll be visible in daylight.
March 17, 2024
Lonely Alphard is the brightest star in Hydra
Alphard is the "heart" and brightest star in the constellation Hydra the Water Snake, and it represents a welcome sign of spring for the Northern Hemisphere.
March 4, 2024
Meet Pollux: The brighter twin star of Gemini
Pollux, the brightest star in the constellation Gemini, blazes in a golden light next to its bluish-white heavenly twin, Castor.
February 20, 2024
Castor is 6 stars in one
The bright blue-white star Castor, in the constellation Gemini, appears to our eyes as a single star. But it’s really a family of 6 stars.
February 20, 2024
Can you see Canopus, the 2nd-brightest star?
Here's how to spot Canopus, the 2nd-brightest star in the sky as seen from Earth, on February evenings. It’s located far south on the sky’s dome.
February 18, 2024
Mizar and Alcor in the bend of the Big Dipper
Mizar and Alcor are a famous pair of stars located at the bend of the handle of the Big Dipper. Can you see both without using binoculars?
February 11, 2024
See Sirius, the brightest star in the night sky
Spot Sirius in Canis Major the Greater Dog - the brightest star as seen from Earth. Learn the science and mythology of Sirius the Dog Star.
February 2, 2024
Elnath is a bright star close to the galactic anticenter
The galactic anticenter is opposite the Milky Way's center from our viewpoint on Earth. The closest bright star to the anticenter is Taurus the Bull's Elnath.
January 15, 2024
