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French scientist Michel Siffre spent two months alone in a cave with no clock, no calendar, and no sunlight " and when his team finally told him the experiment was over, he thought he still had nearly a month left underground
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Helium was discovered on the Sun 27 years before anyone found it on Earth " spotted as an unexplained yellow line in sunlight during an 1868 eclipse and named after Helios, the Greek sun god, long before the gas was identified in any mineral on this planet.
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Voyager 1 is now so far from Earth that a signal traveling at the speed of light takes more than 22 hours to reach it " so when engineers send a command, they can wait nearly two days to know whether the spacecraft responded
9+ hour, 18+ min ago (166+ words) Sending a command to Voyager 1 is closer to mailing a letter than placing a phone call. Published May 24, 2026 Suzy Dodd, the Voyager project manager at NASA's Jet Propulsion Laboratory, put the cadence concretely: "If I send a command and say,…...
Almost half of women in their 60s and 70s in Japan now prefer getting personal advice from AI rather than another human " the only age group in the survey to make that choice " and the country's elderly isolation crisis is the unstated context
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China is sending an astronaut to its space station for a full year " a national record " as Beijing races toward a 2030 crewed moon landing, two years behind NASA's target
10+ hour, 8+ min ago (170+ words) At 11: 08 p. m. local time on Sunday, May 24, 2026, the Long March-2 F Y23 carrier rocket is scheduled to lift off from the Jiuquan Satellite Launch Center in northwest China, carrying the Shenzhou-23 vessel and three astronauts to China's Tiangong space station. Published May…...
The price tag on Trump's "Golden Dome" missile shield just jumped to $1. 2 trillion in a new congressional analysis " seven times the administration's number " with a quiet caveat that the system may not actually do what it was pitched to do
10+ hour, 33+ min ago (166+ words) The Congressional Budget Office released, on May 12, 2026, a new analysis of the projected cost of the Trump administration's signature missile defense project, the so-called Golden Dome for America. Published May 24, 2026 It is worth being precise about what Golden Dome is,…...
The Voyager Golden Record carries greetings in 55 languages " a deliberate attempt to send a small sample of human voices into deep space long after the spacecraft fell silent.
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A tiny jellyfish can reverse its own life cycle when injured or starving, turning back into its younger self instead of dying of old age like everything else
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The Vela satellites were built to catch secret nuclear tests, but they accidentally recorded flashes from deep space that opened a new branch of astrophysics
22+ hour, 58+ min ago (1001+ words) Published May 24, 2026 The Vela satellites were not built to study stars. They were built to watch for nuclear weapons. Then the satellites saw something that was not a bomb. On July 2, 1967, Vela 4 recorded a short flash of gamma radiation. The…...
Atomic oxygen in low Earth orbit slowly eats spacecraft surfaces, and the ISS survives because engineers learned to coat, test, and replace the materials most vulnerable to it
22+ hour, 55+ min ago (1470+ words) Published May 24, 2026 Roughly 400 kilometres above Earth, the International Space Station is flying through a kind of invisible chemical weather. The station is not moving through empty space. It is moving through the thin upper atmosphere, where sunlight breaks oxygen molecules…...