A faraway planet intrigues
An exoplanet with an extremely tilted orbit raises new interest in stellar astronomy.
The hunt for dark matter
MIT physicists are working on new detectors that may, at last, help them find the elusive particles thought to constitute up to a quarter of the universe.
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.