Oddball stars explained
New observations solve longstanding mystery of tipped rotation. In addition to shedding light on how binary stars form, the explanation knocks down a possible challenge to Einstein's theory of relativity.
Echoes of the birth of the universe
Results of cosmic analysis set new limits on gravitational waves that could have come from the Big Bang, and begin to constrain current theories about universe formation
A hard rain's gonna fall
Climate change will yield more extreme rainfall, according to a new analysis.
Jupiter, solar system's 'big bully,' takes a punch
Apparent strike by comet highlights planet's benefit to Earth, MIT professor says
What makes a rolling landscape roll?
New study explains evenly spaced ridges and valleys; could help identify signs of life on other planets.
Planet found in tilted orbit around distant star
Odd discovery may help refine theories about how planets, solar systems form
Climate change odds much worse than thought
New analysis shows warming could be double previous estimates
