Soviet-era spacecraft 'likely' to have re-entered Earth's atmosphere

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Debris actually pelts the ISS all the time, and noticeable dents and cracks line the exteriors. But should something fully breach the station, cabin atmosphere will seep into the vacuum of space and alarms will go off. Pressure gauges will confirm to astronauts that the station has, almost certainly, been hit, and the speed of the seepages may indicate how much time the crew has to respond. According to one NASA estimate, a 0.6-centimeter-wide hole leaves 14 hours to plug the leak. A 20-centimeter hole leaves less than a minute.

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The International Council for the Exploration of the Sea (ICES), which gives scientific advice on sustainable fishing, said that in recent years, mackerel has been overfished due to a lack of international quota agreements. As a result there is not a high enough rate of breeding to replace the volume being caught.