Space
- Astronomy
As many as nine new dwarf galaxies found outside Milky Way
A bevy of newly discovered satellite galaxies around the Milky Way could help astronomers study how galaxies form and the nature of dark matter.
- Planetary Science
Something’s cooking on Enceladus
A trail of silicon-rich particles in one of the rings of Saturn points to possible hydrothermal activity on Enceladus.
- Computing
Concerns about drones, how to hunt exoplanets and more reader feedback
Readers discuss the potential impacts of human-made fliers and muse about the advantages a poker-playing computer program has over human opponents.
- Cosmology
In era of collaboration, individual initiative can still pay off
A risky venture to study cosmic ray particles offers no guarantee of success, but it may help answer two of the biggest questions in physics.
- Astronomy
Remote star clusters discovered on edge of Milky Way
Two newly discovered star clusters are the first ever seen at the remote edges of the Milky Way.
- Particle Physics
Sam Ting tries to expose dark matter’s mysteries
Particle physicist Sam Ting is applying a meticulous approach to analyzing positrons in space, testing whether they can reveal clues about dark matter.
- Planetary Science
Dawn spacecraft arrives at dwarf planet Ceres
The Dawn spacecraft arrives at Ceres to begin a 14-month investigation of the dwarf planet.
- Astronomy
Supernova hurls star out of the galaxy
The fastest-moving star to leave the Milky Way might have been launched by a nearby exploding star.
- Astronomy
Hubble telescope sees quadruple
A galaxy bends light to create four images of the same supernova.
- Planetary Science
Dawn spacecraft on final approach to Ceres
Dawn gets ready to enter the first orbit of its 14-month visit to the dwarf planet Ceres.
- Astronomy
Hundreds of galaxies seen in a new 3-D view of the universe
A new instrument lets astronomers measure the distances to hundreds of galaxies at once, looking back across the age of the universe.
- Quantum Physics
Trying to get the down-low on gravity
A twist on a classic quantum mechanics experiment could lead to the discovery of elusive gravitons.
