Charles Q. Choi
- Indexed articles, last 90 days
- 6
- Latest publication
- Sep 2, 2026
- Outlet visibility, for Space.com
- Top 50K sites
- Earliest in this view
- Jul 20, 2026
Latest articles
Astronomers discover mysterious 10-sided cloud structure at Saturn's south pole (opens the original)
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A mysterious giant 10-sided pattern of clouds has recently formed around Saturn's south pole, a new study finds. This newfound "decagon" joins the bizarre colossal hexagon seen for decades at Saturn's north pole. Saturn's hexagon — a cloud pattern about 20,000 miles (32,000 kilometers) wide — was first discovered in 1988 by scientists reviewing data from NASA's Voyager flybys of Saturn in 1980 and 1981. Despite decades of observations, no similar structure was seen anywhere else on Saturn — unti
Microbes from Earth may survive on the moon, scientists find (opens the original)
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Microbes from Earth might survive the harsh surface of the moon, albeit in a state of suspended animation, a new study finds. Previous research suggested the surface of the moon was too harsh for microbes to survive. Specifically, a 2019 study found ultraviolet rays and heat from the sun are the greatest barriers for microbial life on the lunar surface. However, this prior work did not account for the shelter that hills and valleys might supply on the moon. These could prove especially significa
Radiation-shielding vest aced Artemis I lunar test, could protect astronauts on moon and Mars missions (opens the original)
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A radiation-shielding vest might one day protect astronauts from dangerous, random outbursts from the sun, a new study finds. More than 50 years after the final Apollo mission, NASA's Artemis program aims to return humans to the moon. To succeed, this project must protect astronauts from solar radiation, especially the intense and unpredictable radiation from solar storms. Coating an entire spacecraft with a meaningfully thick layer of radiation shielding remains impractical due to weight constr
3 moons of Neptune may be remnants of ice worlds shattered in a catastrophic crash (opens the original)
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"We've had only a single flyby — Voyager 2 in 1989 — and these results make clear there's much more to learn."
Scientists may have found the 1st twin star system where both stars exploded (opens the original)
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For the first time, scientists may have discovered a binary system—like the twin suns of the fictional planet Tatooine in "Star Wars"—where both stars exploded as supernovas, a new study finds. Although Earth may orbit around a single star, more than half of all stars are in systems where two or more suns orbit each other. "When it comes to massive stars, the percentage in multiple systems are even higher," study lead author Miltiadis Michailidis, a postdoctoral fellow at Stanford University in
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