Testicular maldescent in infertile men may be a sign of a more severe genetic syndrome - EurekAlert
Earth’s record hot streak might be a sign of a new climate era
Planets that look alike might be a sign of spacefaring aliens
NIH probe of ‘Havana syndrome’ finds no sign of brain injuries
North Atlantic Temperatures Smash 40-Year Records: A Sign of Climate Emergency?
Researchers propose that if a terrestrial planet has substantially less carbon dioxide in its atmosphere compared to other planets in the same system, it could be a sign of liquid water — and possibly life — on that planet’s surface.