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During Apollo 11’s final descent, the guidance computer flashed 1201 and 1202 alarms as it ran out of processing capacity — then repeatedly rebooted, discarded low-priority work and kept steering the lunar module towards the surface
5+ hour, 33+ min ago (939+ words) A computer built to handle one task nearly derailed the moon landing when it tried to do too many things at once—and saved itself by knowing what to forget....
A full-time airline crew member flying heavy North Atlantic routes can absorb between 2,000 and 5,000 microsieverts of cosmic radiation a year, picking up four to six microsieverts every single hour aloft
18+ min ago (421+ words) A Boeing 777 pilot flying North Atlantic routes at 38,000 feet absorbs cosmic radiation at four to six microsieverts per hour — up to 5,000 microsieverts a year, more than the average U.S. nuclear plant worker. In 2025 the National Academies urged the FAA to…...
A detector buried a kilometre underground in Japan may have caught the faintest signal ever recorded: the combined whisper of every supernova that has ever exploded across the entire universe, a background hum of stellar death that scientists have been straining to hear for decades
53+ min ago (815+ words) For nearly three decades, scientists have searched for proof that the universe's oldest explosions leave an eternal fingerprint in ghostly particles—and now they may have finally found it. Published July 20, 2026 Super-Kamiokande has reported the first indication of the diffuse…...
When Spirit’s front wheel failed on Mars, engineers drove the rover backwards and let the dead wheel scrape through the soil — accidentally uncovering bright silica that pointed to ancient hot springs or steam vents
6+ hour, 59+ min ago (1160+ words) A broken wheel became a shovel, revealing mineral signatures that suggested Mars once harbored conditions suitable for microbial life. Published July 19, 2026 Spirit’s right-front wheel stopped turning on 13 March 2006, more than two Earth years after the rover reached Mars. Engineers kept…...
Astronauts who have seen the whole Earth at once describe the overview effect — every war and border and argument hanging in silence — and afterwards traffic and small talk can feel strangely far away, like the world seen through glass
6+ hour, 51+ min ago (556+ words) Edgar Mitchell coined a private version of it on Apollo 14 in 1971; Frank White gave it a name in 1987; and in April 2026 the Artemis II crew, flying 406,771 kilometres from Earth, described the same shift in almost the same words. Published July…...
Across Titan’s equator, winds have built dunes around 100 metres high and hundreds of kilometres long — but the grains are water ice coated in hydrocarbons that fell out of the moon’s orange atmosphere
4+ hour, 44+ min ago (1137+ words) On Saturn's moon Titan, vast dune fields are made not of sand but of frozen water and exotic organic chemicals—raising questions about how such alien landscapes form and evolve. Published July 19, 2026 Cassini’s radar found dark, nearly parallel dune belts…...
Cassini watched bright “islands” appear, disappear and reappear in Titan’s methane seas — and laboratory experiments suggest they may be fields of nitrogen bubbles fizzing out of solution as the alien lakes warm or mix
6+ hour, 59+ min ago (1219+ words) A possible solution to Saturn's moon mystery: nitrogen bubbles rising through alien seas as conditions shift beneath the surface. Published July 19, 2026 Cassini’s radar saw bright features appear within Titan’s dark northern seas, vanish on later passes and, in one region,…...
In 1970, Venera 7 appeared to fall silent when it hit Venus, but engineers later found 23 minutes of faint radio data buried in the recording — the first transmission ever received from the surface of another planet
6+ hour, 45+ min ago (1116+ words) What ground control dismissed as static turned out to be humanity's first whisper from another world. Published July 20, 2026 Venera 7’s radio signal appeared to end when the Soviet capsule reached Venus on 15 December 1970. The strong descent transmission dropped at impact,…...
Astronauts returning from long stays in orbit say the smell of rain is almost too much to bear and a familiar street feels like something they are piloting rather than driving
6+ hour, 52+ min ago (636+ words) Scott Kelly and other long-duration ISS crew describe overwhelming smells, painful feet, and a driving sensation that feels remote-controlled after months in microgravity — the nervous system re-learning Earth in real time. Published July 20, 2026 Kelly is not unusual. He is the…...
Mercury is shrinking — as its iron core slowly cools, the whole planet has contracted by up to seven kilometres, wrinkling its surface into cliffs hundreds of miles long
1+ day, 9+ hour ago (349+ words) Mercury carries the record of planetary cooling across its surface. Long, curving cliffs cut through craters and plains because the small planet lost internal...