New Research Suggests the Universe May Be Teeming with Alien Minds
Scientists debate whether human-level intelligence is a cosmic rarity or commonplace in the universe.
Asteroid Bennu Sample Reveals Amino Acids Formed in Space Ice
Penn State scientists say Bennu's glycine may have formed in frozen, irradiated ice, not warm water, reshaping origins-of-life ideas.
Bennu Asteroid Reveals New Insights on Life's Origins
Amino acids, the building blocks of life, were found in samples from the 4.6-billion-year-old asteroid Bennu.