Uncategorized
- Earth
Earth’s oldest known earthquake was probably triggered by plate tectonics
Billion-year-old rocks in South Africa hold evidence for the onset of plate tectonics early in Earth’s history.
- Earth
Climate change is changing how we keep time
Polar ice sheets are melting faster, slowing Earth’s spin. That is changing how we synchronize our clocks to tell time.
- Space
A new image reveals magnetic fields around our galaxy’s central black hole
Astronomers have captured polarized light coming from the Milky Way’s central supermassive black hole, giving insight into its magnetic fields.
- Physics
A teeny device can measure subtle shifts in Earth’s gravitational field
No bigger than a grain of rice, the heart of the instrument is the latest entrant in the quest to build ever tinier gravity-measuring devices.
