The new study involved taking a fresh look at the "Altamura Man," which is an exceptionally well-preserved Neanderthal skeleton covered in a thick layer of calcite, sometimes called "cave popcorn." The researchers' findings suggest that the size of Neanderthal noses might not have had anything to do with living in cold temperatures.

A fresh wave of conspiracy theories surrounding the interstellar object 3I/ATLAS has prompted astronomers to issue public warnings about the spread of misinformation. The comet, only the third interstellar visitor ever detected, has become the focus of ...

Astrophotographer Satoru Murata spoke with NBC News’ Gadi Schwartz about his remarkable photo of 3I/ATLAS and the mysteries surrounding the interstellar object racing through the solar system.