17 trends tracked about this subject — the full history, oldest to newest below.
Original 'Grease' actress Didi Conn, 75, surprised fans with a rare public appearance at an immersive production of the classic movie musical.
A woman in Brisbane, Australia, has given birth to identical quadruplet girls, an event described as a one-in-15-million medical rarity.
Meteorologists are monitoring the potential simultaneous occurrence of a 'super' El Niño and a rare 'Atlantic Niña' event.
Gisele Bündchen breaks her usual privacy norms by sharing a rare photo of her one-year-old son's face during a family getaway to French Polynesia.
Pokemon Scarlet and Violet players are racing against a July 17 deadline to claim a free super-rare Pokemon during limited summer events.
Collectors are hunting thrift stores for a rare 1950s Pyrex bowl produced for just one year that is now worth a fortune.
A rare planetary parade on July 12 features the Moon appearing alongside Mars, Saturn, and Uranus in a significant celestial alignment.
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Actress Justene Alpert is sharing her personal experience with pregnancy termination following a rare genetic diagnosis for her fetus.
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A rare, more severe strain of Lyme disease has been detected in Upstate New York for the first time—raising alarms about expanding tick-borne risks.