
Mysterious "blobs" deep inside Earth are "buried relics" from collision 4.5 billion years ago with another planet, study suggests
CBSN
Scientists proposed a novel idea on Wednesday that could solve two of the world's mysteries at once — one that passes over our heads every night, and one that sits far below our feet.
The first mystery has puzzled everyone from scientists to inquisitive children for millennia: where did the moon come from?
The leading theory — known as the Giant Impact Hypothesis — is that the moon was created 4.5 billion years ago when a would-be planet the size of Mars smashed into the still-forming Earth.

Merryl Hoffman knew she was taking good care of her heart. The 63-year-old attorney didn't smoke or drink, and she was an avid hiker who used to run marathons and other distance races. In her 40s, she had been diagnosed with a leaky mitral valve and underwent surgery to repair it. Every year since, she has seen a cardiologist to check her heart and its function. The reports always came back clear.

FDA to "review the latest data" on mifepristone. What could it mean for access to the abortion pill?
Health and Human Services Secretary Robert F. Kennedy Jr. has asked Food and Drug Administration Commissioner Marty Makary "to review the latest data on mifepristone," raising questions about the drug commonly referred to as the abortion pill.