Astronomers use giant galaxy cluster as X-ray magnifying lens
New lens technique spots tiny dwarf galaxy in the first, super-energetic stages of star formation.
New lens technique spots tiny dwarf galaxy in the first, super-energetic stages of star formation.
Study reports on search for an atmosphere around a planet somewhat similar to ours.
Planetary system orbiting an unusually quiet star is ideal for future habitability searches.
Pulse pattern suggests distant black hole must be spinning at least at 50 percent the speed of light.
Mavalvala, Evans, Frebel, Katsavounidis, and Vitale discuss the science behind LIGO's observations of a neutron star collision.
Study explains why galaxies don’t churn out as many stars as they should.
New model, spanning 13 billion years of cosmic evolution, makes important advances.
Faintest galaxy ever detected illuminates unusual aspects of the universe’s early evolution.
While too hot to support life, Kepler 78b is roughly the size of the Earth.
The very first stars may have turned on when the universe was 750 million years old.
For the first time, an international team has measured the radius of a black hole.
Researchers measure the orientation of a multiplanet system and find it very similar to our own solar system.