News
- Space
NASA pulls out of astrophysics missions
Europe is now on its own for two planned spacecraft to study black holes and gravitational waves.
- Humans
Possibly pivotal human ancestor debated
An ancient species that may have sparked the rise of humankind gets a new appraisal.
- Life
Complex life hit freshwater early
Tiny fossils in Scottish rock show that cells with nuclei had spread beyond the seas by a billion years ago.
- Earth
Seismologists rumble over quake clusters
Japan tremor may be part of a second grouping of great quakes since 1900, some scientists say.
