Astronomy

Study casts doubt on whether adult brain’s memory-forming region makes new cells

An examination of 54 human brains suggests that adults don’t grow new neurons in the hippocampus, contrary to several widely accepted studies.

50 years ago, artificial limbs weren’t nearly as responsive

Artificial limbs have come a long way since 1967.

Colliding black holes are reported for a fifth time

LIGO spots another merger, this time with less fanfare.

Excess antielectrons aren’t from nearby dead stars, study says

Pulsars might not be behind excess antimatter, gamma-ray observations suggest.

Current CRISPR gene drives are too strong for outdoor use, studies warn

Self-limiting genetic tools already in development may be able to get around concerns surrounding the use of gene drives.