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Nicolaus Copernicus born 553 years ago today
Today is the 553rd birthday of Nicolaus Copernicus, who removed Earth from the center of the universe and set off a revolution.
February 19, 2026
Milky Way and Andromeda held together by dark matter sheet
A new computer simulation shows the Milky Way and nearby galaxies are in a sheet of dark matter between 2 voids. Galaxies on the outside fly away from us.
February 18, 2026
Cassiopeia the Queen reigns in the February sky
Cassiopeia the Queen is an easy-to-find constellation. It has the shape of a W or M. Look in the northwest, on the evenings, in late winter and early spring.
February 18, 2026
Black hole belches radiation long after eating a star
A black hole has been spewing out powerful radio waves years after shredding a star, and it's expected to get brighter till 2027.
February 17, 2026
NASA says organics on Mars are hard to explain without life
NASA's Curiosity rover found complex organics on Mars, possibly remains of fatty acids. A new NASA study suggests they are difficult to explain without life.
February 17, 2026
Happy Lunar New Year 2026! The Year of the Horse
Lunar New Year 2026 kicks off February 17 with the new moon, marking the start of the Year of the Horse — fireworks, dragons and global celebrations await!
February 17, 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
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 17, 2026
The gliding possum is a nocturnal acrobat of the forest
The gliding possum darts through the night, soaring up to 165 feet with its young in its pouch. This tiny acrobat rules the treetops.
February 16, 2026
Chelyabinsk meteor: February 15, 2013
On February 15, 2013, the Chelyabinsk meteor streaked across the sky over Russia - brighter than the sun - and then exploded.
February 15, 2026
