Ghost galaxies may haunt the Milky Way
Galaxies low in dark matter may be so diffuse that they float nearby, totally unseen.
'Junk' DNA linked to aggressive cancers
Some recurrent DNA sequences thought to be nothing more than molecular parasites appear to be active only in breast and colon cancer cells.
Chilling out in the coldest place on Earth
Vostok Station in Antarctica holds the record for the coldest place on the planet, at -89.2 °C – but it could get colder still.
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