Thursday, July 9, 2026

How 'Star City' Reimagined the Space Race With Soviets as the Stars

A female cosmonaut (played by Alice Englert) speaks after landing on the moon in "Star City." (Credit: Apple TV)

How do you capture the mood of the 1960s space race in a fictional universe where the Soviets beat the Americans to the moon? The production team for Apple TV's "Star City" series rose to the challenge.



To Ancient Astronomers, Theta Eridani Was Brighter For A Thousand Years. Now We Know Why

Theta Eridani was considered one of the thirteen brightest stars by ancient astronomers, but it's not that luminous now. That mismatch has puzzled modern day astronomer, who've struggled to understand the discrepancy. But modern observations show it's actually a triple star system, and mass transfer between the stars can explain its ancient luminosity. Image Credit: STScI/DSS

Ptolemy and al-Sufi were keen ancient astronomers, one in Greece and one in Persia, whose observations were separated by almost a thousand years. They both noted that the star Theta Eridani was far brighter than it is today. Now we know why.



Ultra-Black Coating Could Mitigate Light Pollution Caused by Satellites

Image of the Australian desert showing the growing light pollution caused by artificial satellites. Credit: Joshua Rozells

Astrophysicists working tirelessly to tackle the growing impact of satellite constellations have pioneered a new ultra-black coating as one possible way to mitigate the problem.



Wednesday, July 8, 2026

7,000 Galaxy Clusters, Hiding in Plain Sight

South Pole Telescope seen at night (Credit : U.S. Antarctic Program Blue Ribbon Panel

A five year survey by the South Pole Telescope has produced a catalogue of more than seven thousand galaxy clusters, some dating back nearly eight billion years, giving astronomers their most detailed map yet of the universe's largest structures. Hidden inside the data is something even the researchers did not expect, a discovery that is quietly reshaping how we think star formation unfolded across the history of the universe.



Detecting Atomic Weapons in Space

The large majority of satellites are in Low-Earth Orbit, including the handful seen in this image. The Outer Space Treaty prohibits weapons in space, but some are suspicious that Russia is experimenting with them because they placed a suspicious satellite in Low-Earth Orbit. New research proposes a method to detect atomic weapons in space, to keep signatories to the Outer Space Treaty honest. Image Credit: NOAA.

The Outer Space Treaty from 1967 prohibits weapons in space. But a satellite launched by Russia has generated suspicion. Despite claims that it's a normal satellite, some things about it suggest otherwise. New research proposes a way to detect atomic weapons in space, helping enforce the treaty.



The Milky Way's Arms Reach Out Further Than we Thought

An artist’s concept showing the Milky Way galaxy as seen from above, with the estimated positions of spiral arms based on previous data, in blue. Credit: NASA/CXC/SAO/M.Weiss

A new result using NASA’s Chandra X-ray Observatory shows that the outer spiral arms in the Milky Way galaxy may reach wider than previously thought. This finding may lead astronomers to adjust their understanding of our home galaxy’s structure.



The JWST and the Mystery of Massive Quenched Galaxies in the Early Universe

This image shows four of the massive quenched galaxies the JWST found in the early Universe. These images show them as they were around 9 billion years ago, during the Cosmic Noon. The Cosmic Noon was a period of peak star formation in the Universe's galaxies, yet many of these quenched galaxies have been found. Image Credit: David Maltby - University of Nottingham

With its ability to observe the red-shifted light from early galaxies, the JWST has revealed some surprises. Many massive galaxies in the early Universe had ceased star formation and were already quenched hundreds of millions of years sooner than thought. By examining their morphology, new research shows that mergers that were previously hidden from view are responsible.