Stars align in test supporting “spooky action at a distance”
Physicists address loophole in tests of Bell’s inequality, using 600-year-old starlight.
LIGO back online, ready for more discoveries
Upgrades make detectors more sensitive to gravitational waves.
Pluto’s icy, slushy heart
Data from New Horizons mission suggest a water-ice ocean lies beneath Pluto’s heart-shaped basin.
Team simulates a magnetar to seek dark matter particle
Detecting “axion” particles may solve longstanding problem in particle physics.
MIT’s REXIS is bound for asteroid Bennu
Instrument will help OSIRIS-REx mission identify locations for collecting an asteroid sample.
Neutrino search finds no evidence of “hidden” particle
If discovered, sterile neutrinos may explain dark matter.
First atmospheric study of Earth-sized exoplanets reveals rocky worlds
Two potentially habitable planets in nearby system are confirmed to be rocky.
Dead X-ray satellite reveals “quiet” center of massive galaxy cluster
Scientists find gas at center of Perseus cluster travels much more slowly than expected.
Researchers trace Mercury’s origins to rare meteorite
Experiments show planet cooled dramatically in half a billion years.
For second time, LIGO detects gravitational waves
Signal was produced by two black holes colliding 1.4 billion light years away.
Scientists observe supermassive black hole feeding on cold gas
Findings suggest two dining styles for black holes.
A method to image black holes
New algorithm could stitch together astronomical measurements made across the globe.
Rainer Weiss wins Kavli Prize in Astrophysics
LIGO inventor shares award for direct detection of gravitational waves.
Rainer Weiss awarded the Shaw Prize in Astronomy
Physics professor emeritus shares prize with Caltech's Kip Thorne and Ronald Drever for designing the Laser Interferometer Gravitational-Wave Observatory.
LIGO researchers awarded Special Breakthrough Prize in Fundamental Physics
Team that detected gravitational waves to share $3 million prize.