Don't miss the 'String of Pearls' galaxy at peak visibility on September 24—where and how to see it best
Astronomers classify NGC 55 as a Magellanic-type galaxy, placing it in an intermediate category between an irregular and a dwarf spiral galaxy.
Sep 23, 2025
With the September equinox here, watch the zodiacal light in the morning sky this week
The zodiacal light will be gracing the skies during sunrises and sunsets in the absence of twilight as the equinoxes approach.
Sep 22, 2025
'Equinox' solar eclipse 2025: Parts of the world that had the best view
A dramatic partial solar eclipse graced the skies on September 21, 2025, giving people on Earth the sight of a radiant crescent star.
Sep 22, 2025
Here's how to spot Comet SWAN (C/2025 R2) in the night sky from now until October 20
Comet SWAN is scheduled to be at its closest approach to Earth around October 20, 2025.
Sep 22, 2025
Solar storm may hit Earth at the autumn equinox, setting the stage for fall auroras
A solar event is forecast to strike during the autumnal equinox, a time of year when Earth's magnetic field is naturally more sensitive to solar disturbances.
Sep 20, 2025
Solar wind is causing 'major disturbance' to comet SWAN (C/2025 R2) gliding through space
New observations from an astronomer reveal a highly reactive comet tail, which showed remarkable changes in just ten minutes.
Sep 18, 2025
Giant asteroid 2025 RL2 to make closest approach to Earth this week—when and how to watch
The asteroid will zoom past our planet at a distance of just 134,566 miles (about 216,563 kilometers).
Sep 18, 2025
Massive asteroid once feared a threat to Earth set for close flyby on September 18
The asteroid, officially named 2025 FA22, is roughly the height of a skyscraper, with an estimated width of 130 to 290 meters.
Sep 17, 2025
Moon phases 2025: When is the next new moon
Due to a direct alignment between the Sun, Moon, and Earth, a new moon is invisible from our perspective because the side of the moon facing us is completely unlit.
Sep 17, 2025
Don't miss Neptune's closest approach to Earth on September 23—where to find it in the evening sky
This rare event, known as opposition, occurs when the Sun, Earth, and Neptune align, causing the planet to appear brighter and more prominent in the night sky.
Sep 17, 2025
Halley's Comet will return in 2061—for 1980s kids, it will be a full-circle moment
The celestial event will mark a generational milestone for those who witnessed its last appearance in 1986.
Sep 16, 2025
Will the northern lights be visible tonight? Here's what the forecast says
If conditions line up, moderate storms could also unfold, making the aurora borealis visible in regions like Canada and Alaska.
Sep 16, 2025
New comet SWAN25B discovered in September 2025—here are viewing tips and its likely coordinates
The comet SWAN25B was initially detected by the Solar Wind Anisotropies (SWAN) instrument on the SOHO spacecraft.
Sep 15, 2025
'God of Chaos' asteroid would be visible to the naked eye in a once-in-a-millennium celestial event
An asteroid of this immense size, roughly 1,100 feet wide, only makes a close approach to Earth once every 7,500 years, according to scientific estimates.
Sep 15, 2025
How to spot 'swan-shaped' Cygnus constellation in the September night sky
A striking, swan-shaped constellation known as the Northern Cross, Cygnus is the 16th largest constellation and a rich section of the Milky Way.
Sep 12, 2025
2025 partial solar eclipse: When and how to watch the astronomical phenomenon on September 21
The eclipse belongs to the Saros cycle, a well-documented celestial pattern that repeats approximately every 18 years and 11 days.
Sep 10, 2025
In pics: 'Blood Moon' total lunar eclipse as seen from Japan, Egypt, India and across the globe
The stunning astronomical event marked the longest eclipse of its kind since 2022, with the moon appearing a vivid red for a remarkable 82 minutes.
Sep 8, 2025
Best time to see the September Epsilon Perseids—all you need to know
The relatively lesser-known September Epsilon Perseids from the constellation Perseus will be at their best after midnight.
Sep 6, 2025
Next total lunar eclipse visible in Americas—don't miss the March 2026 'Blood Moon'
A spectacular total lunar eclipse is set to captivate skywatchers this week, but the celestial show will not be visible from the Americas.
Sep 5, 2025
Blood Moon 2025: How to watch the total lunar eclipse in the U.S. on September 7
The September 7 'blood moon' will be a global event, visible to viewers in Africa, Asia, and Australia, but not to those in the Americas.
Sep 4, 2025