Volume 322, Issue 2
You are currently logged out. Please log in to download the issue PDF.
Features
Solar and Wind Power Could Ignite a Hydrogen Energy Comeback
Hydrogen, produced from water by surplus electricity, could power industry and the grid
No One Can Explain Why Planes Stay in the Air
Do recent explanations solve the mysteries of aerodynamic lift?
Fully Autonomous Weapons Pose Unique Dangers to Humankind
Nations racing to acquire weapons that choose their own targets are ignoring the apocalyptic scenarios that can unfold when rivals catch up
In Search of the Brain's Social Road Maps
Neural circuits that track our whereabouts in space and time may also play vital roles in determining how we relate to other people
The First Molecule in the Universe
Scientists have identified mystery molecules in space and the compound thought to have started chemistry in the cosmos