Who are we? We find that we live on an insignificant planet of a humdrum star lost in a galaxy tucked away in some forgotten corner of a universe in which there are far more galaxies than people

— Carl Sagan

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Updated: 2 hours 54 min ago

Our big brains may have evolved because of placental sex hormones

Thu, 06/19/2025 - 8:01pm
Unlike other primates, humans are exposed to high levels of placental sex hormones in the womb, which may have shaped our evolutionary brain development
Categories: Astronomy

Your brain tracks your sleep debt – and now we may know how

Thu, 06/19/2025 - 3:00pm
A newly identified brain circuit in mice may explain why we sleep longer and deeper after being sleep deprived – and lead to new treatments for sleep conditions
Categories: Astronomy

CAR T-cell therapy could be made in the body of someone with cancer

Thu, 06/19/2025 - 3:00pm
Treating types of cancer with CAR T-cell therapy is expensive and inconvenient, but a streamlined approach that creates the therapy within the body could make the intervention cheaper and easier
Categories: Astronomy

Offsetting global fossil fuel stores by planting trees is impossible

Thu, 06/19/2025 - 12:00pm
Trees would have to be planted on a vast proportion of global land mass to offset the carbon dioxide emissions from burning the world’s fossil fuel reserves
Categories: Astronomy