Cosmic Conflict: Diverging Data on Universe's Expansion Polarizes Scientists
A disagreement between two canonical measures of intergalactic distances could signal a renaissance in physics—or deep flaws in our studies of cosmic evolution
By Lee Billings
Space & Physics
A Conversation with Thomas Hertog, One of Stephen Hawking's Final Collaborators
The theoretical physicist talks with Scientific American about the far-reaching implications of his final collaboration with his late friend and mentor
By Alexander Hellemans
Space & Physics
Evidence Builds for a New Kind of Neutrino
“Sterile neutrinos” that ignore all other particles might be showing up in experiments—and could even help solve the mystery of dark matter
By Clara Moskowitz
Departments
New Higgs Boson Observations Reveal Clues on the Nature of Mass
From the Editor
A Rage to Master the Universe
News
Giant Black Hole Swallows a Star and Belches Out a Superfast Particle Jet
Quantum Physics May Be Even Spookier Than You Think
Curiosity Rover Uncovers Long-Sought Organic Materials on Martian Surface
Gravitational Waves Reveal the Hearts of Neutron Stars
Glittering Diamond Dust in Space Might Solve a 20-Year-Old Mystery
