Why isn’t the universe as bright as it should be?
Study explains why galaxies don’t churn out as many stars as they should.
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.
Tellurium detected for the first time in ancient stars.
NASA’s Kepler orbiting telescope has found hundreds of new possible planets, including 54 in the so-called 'habitable zone.'
How astronomers learn whether a planet is habitable by observing slight changes in light emanating from its parent star.