Space
- 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
Hubble telescope sees quadruple
A galaxy bends light to create four images of the same supernova.
- 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.
- 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.
- Astronomy
Planet collisions may have rearranged crowded solar systems
Solar systems discovered by Kepler with just one or two worlds may be remnants of planet families that were once far more crowded.
- Planetary Science
Mysterious bright spot on Ceres has a partner
A new image from the Dawn spacecraft finds two bright patches within a basin, possibly caused by an ice volcano.
- Astronomy
Monster black hole lurks in the early universe
A black hole weighing the same as 12 billion suns is the most massive one known in the early universe.
- Earth
Water’s unclear origins, shaky solutions to climate change and more reader feedback
Readers discuss the pitfalls of carbon storage, whether a recent movie got Alan Turing's story right and more.
