Astronomía Recreativa

Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2025 January 21 Comet ATLAS over Brasília Image Credit: Frederico Danin Explanation: What's that in the sky? Above the city, above most clouds, far in the distance: it's a comet. Pictured , the impressive tail of Comet C/2024 G3 (ATLAS) was imaged from Brasília , Brazil four days ago. Last week the evolving comet rounded the Sun well inside the orbit of planet Mercury, going so close there was early concern that it might break up -- and recent evidence that it really did. At one point near perihelion, Comet ATLAS was so bright that sightings were even reported during the day -- over the bright sky near the Sun -- by careful observers . Over the past few days, Comet ATLAS has ...