Everything here arrived late
Space missions, life sciences, health and the Earth — a page each, written from what was measured rather than from the press release. Nothing you read about the sky is current: the light left a long time ago.
Station orbits in low Earth orbit at about 400 km The International Space Station circles Earth at roughly 400 kilometres altitude, a zone officially called low Earth orbit, completing one lap in…
Station orbits in low Earth orbit at about 400 km The International Space Station circles Earth at an altitude of roughly 400…
Tiny particles of plastic are everywhere. So far, the so-called. Microplastics have been found in oceans, tap water, bottled water, or soil.…
Shifting to a plant-based diet, reducing food waste and improving agricultural technology are necessary to feed 10 billion people. This is the…
Removing the appendix may reduce the risk of Parkinson's disease, new research suggests. The results of the researchers' work indicate that this…
Free tool · runs in your browser
Put in a distance — kilometres, astronomical units, light years or parsecs — and it returns how long light takes to cross it, which is the same thing as how old the picture is. The presets are the objects this site has actually written about.
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Science reporting ages in a specific way: the finding stands but the interpretation moves, or a follow-up fails to replicate it. If you know that has happened to something on this site, tell us and we will note it on the article.
