Nasa
July 2026
Every article published in July 2026. 25 articles · Back to full archive
Nasa
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
Nasa
In 1990, after years of lobbying by Carl Sagan, Voyager 1 turned its camera back toward home from about 6 billion kilometres away and photographed Earth as a pale blue speck smaller than a single pixel — an image NASA had repeatedly resisted because it offered little scientific value, but that became one of the most famous photographs ever taken.
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Titan has rivers, rainfall, lakes and a slow hydrological cycle exactly like Earth's, except that every drop of it is liquid methane and the rock the rivers run over is water ice
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Astronauts returning from six-month missions describe a persistent 'observer' sensation — the feeling of watching their own lives from a half-step outside the frame, weeks after they're back on the ground
Nukewars
What happened when engineers terraced a 640,000 square kilometre plateau whose yellow silt had been choking the world's muddiest river for millennia, and the sediment load fell by nearly 90 percent within two decades?
Nukewars
At around 30 years old, the human spinal discs begin losing water and compressing under gravity, shortening most people by about 1 centimetre per decade. On the International Space Station, astronauts float free of that load and grow up to 5 centimetres taller within weeks
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When the Soviet Union sent the dog Laika into orbit in 1957, the public was told she had survived for days — but decades later it emerged that she had actually died within hours, after Sputnik 2's cabin overheated
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