Cosmology
- Astronomy
Hubble telescope sees quadruple
A galaxy bends light to create four images of the same supernova.
- 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.
- Cosmology
The past according to Planck: Cosmologists got a lot right
New results from the Planck satellite largely support cosmologists’ theories, but leave the door open for new discoveries.
- Astronomy
Finding joy and inspiration in the pursuit of knowledge
Editor in Chief Eva Emerson ruminates on the power of knowledge, and the ways scientists are refining how we think about the aging human brain, far away comets and even the speed of light.
- Astronomy
First stars born later than thought
New results from the Planck mission indicate that the first stars began to shine 550 million years after the Big Bang.
- Cosmology
Dust erases evidence for gravity wave detection
The claimed detection of primordial gravitational waves does not hold up after taking into account galactic dust, a new analysis concludes.
- Quantum Physics
Top 10 scientific mysteries for the 21st century
Solving the Top 10 scientific mysteries facing the 21st century will not be all fun but could be mostly games.
- Physics
How blueshift might beat redshift
Even though the expanding universe makes light redder, light emitted by collapsing stars and dust clouds could appear unusually blue.
- Astronomy
Gamma-ray bursts may repeatedly wipe out life
Brief bursts of high-energy radiation may sterilize most planets across the universe, hampering the chances for widespread intelligent life.
- Cosmology
Most precise snapshot of the universe unveiled
New results from the Planck satellite provide the most detailed look yet of the makeup of the universe.
- Physics
Negative mass might not defy Einstein
Repulsive matter could have played a role in the early universe, a computational study finds.
- Cosmology
Galaxies may be aligned across 1 billion light-years
Powerful plasma jets from cores of galaxies seem to mysteriously align with one another and hint at an unknown mechanism shaping galaxy groups.
