Comet 3I/ATLAS is hitting a major milestone on Oct. 30, 2025. The interstellar comet is reaching perihelion, its closest point to our Sun, marking the climax of its brief journey through our solar ...
For the first time, scientists believe they have captured direct evidence of the mechanisms that trigger a solar flare. These massive explosions, generated by the Sun, release staggering amounts of ...
The September 2025 issue featured “A guide to beginner’s guides,” a reminiscence and description of some the books for astronomy beginners that Contributing Editor Raymond Shubinski recommends or ...
Take advantage of the dark window before the crescent Moon rises to explore the Rosette Nebula, also cataloged as NGC 2237. This gorgeous sight is made up of a central open star cluster surrounded by ...
When VOYAGER 2 flew by neptune and its largest satellite, Triton, in 1989, it revealed a moon with never-before-seen terrain and plumes spurting from the surface. At the time, scientists attributed ...
How far can sound travel through space, since it’s so empty? Is there an echo in space? – Jasmine, age 14, Everson, Washington In space, no one can hear you scream. You may have heard this saying.
The object that would become known as both the Great January Comet of 1910 and the Daylight Comet was first seen Jan. 12 in the Southern Hemisphere. It’s unclear who precisely discovered it, but some ...
On Jan. 20, 1930, Edwin “Buzz” Aldrin was born in New Jersey. After graduating from West Point and serving as a fighter pilot in the Korean War, Aldrin completed his Ph.D. at MIT in 1963. When he was ...
Beyond our solar system, sub-Neptunes — gassy planets larger than Earth but smaller than Neptune — reign as the most common type of exoplanet observed in our galaxy. Despite their prevalence, no such ...
If you’re up early today, try finding the famous Keystone of Hercules in the eastern sky, about 40° high two hours before sunrise. Looking east, you’ll see a bright star (magnitude 0.0) some 20° high ...
Comet 24P/Schaumasse is roughly 10th magnitude, visible using optics or in astrophotos of the sky. Rising shortly before local midnight, Schaumasse is best seen in the early-morning hours — and with ...
When Pioneer 10 flew by Jupiter on Dec. 3, 1973, its margin of survival was closer to the knife-edge than it seemed. It absorbed a thousand times the lethal dose of radiation for a human, suffering ...
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