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James Webb telescope finds that galaxies in the early universe were much more chaotic than we thought
By Elizabeth Howell published
Using the James Webb Space Telescope, scientists have charted billions of years of galactic evolution, finding that galaxies near the dawn of time were much more chaotic than they are today.

Superbright 'Comet Lemmon' gets its tail temporarily torn to pieces by solar wind
By Harry Baker published
An astrophotographer snapped a stunning shot of Comet Lemmon's flowing tail getting shredded by a strong gust of solar wind, just three days before it reaches its closest point to Earth.

Superbright 'Comet Lemmon' flies through auroras over Scotland during surprise solar storm
By Harry Baker published
A photographer snapped a striking shot of Comet Lemmon streaking over Scotland as the night sky unexpectedly filled up with a technicolor mix of vibrant auroras.
What are the mysterious lights sometimes seen on the moon?
By Deepa Jain published
Earth's moon is occasionally illuminated by flickers, glows or beams of light. What are these mysterious lights?

Comets Lemmon and SWAN reach their brightest this week
By Jamie Carter published
Comet Lemmon (C/2025 A6) makes its closest approach to Earth on Oct. 21, about 24 hours after the fainter Comet SWAN (C/2025 R2) does the same. Here's how, where and when to see them both.

ALMA and JWST solve major star formation mystery: Space photo of the week
By Shreejaya Karantha published
For the first time ever, astronomers revealed the birthplace of an energetic jet blasted by a newborn star using the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile.

Astronomers detect first 'heartbeat' of a newborn star hidden within a powerful cosmic explosion
By Mark Thompson published
Astronomers have uncovered the source of a strange, repeating signal nestled within a powerful cosmic explosion.

Orionids 2025: Meteor shower caused by Halley's Comet peaks as two new comets cross the sky
By Jamie Carter published
Comets Lemmon and SWAN will be at their brightest just as the annual Orionid meteor shower produced by Halley's Comet reaches its peak.

Astronomers close in on signal from Epoch of Reionization
By Sharmila Kuthunur published
A faint radio "whisper" from ancient hydrogen reveals the universe was heating up long before it filled with starlight.

Record-breaking 'dark object' found hiding within a warped 'Einstein ring' 10 billion light-years away
By Harry Baker published
Researchers have found a suspected clump of dark matter lurking within the luminous halo of a well-known "Einstein ring." The mysterious object, the smallest of its kind ever seen, could help shed light on the universe's missing matter.
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