Water Flows on Mars Today, NASA Announces
The Mars Reconnaissance Orbiter found evidence that flowing water causes suspicious dark streaks on the Red Planet
Stories by Clara Moskowitz
Book Review: A River Runs Again
Recommendations from Scientific American
Book Review: The Physicist and the Philosopher
Recommendations from Scientific American
Duck-Shaped Comet Confounds Astronomers
Comet 67P/Churyumov-Gerasimenko’s incongruous chemical composition and shape raise questions about the origin of our solar system
2 Accelerators Find Particles That May Break Known Laws of Physics
The LHC and the Belle experiment have found particle decay patterns that violate the Standard Model of particle physics, confirming earlier observations at the BaBar facility
General Relativity at the Beach
A hammock turns out to be the perfect place to contemplate spacetime, especially if you happen to have some coconuts
Book Review: Einstein's Dice and Schrödinger's Cat
Recommendations from Scientific American
Book Review: Einstein: His Space and Times
Recommendations from Scientific American
Book Review: The Road to Relativity
Recommendations from Scientific American
Stephen Hawking Hasn't Solved the Black Hole Paradox Just Yet
The mystery of black holes and information loss is too thorny for a quick resolution
Book Review: Life's Greatest Secret
Recommendations from Scientific American
Book Review: Spurious Correlations
Recommendations from Scientific American
Astronomers Gather in Hawaii Amid Controversy over Giant Telescope
Native Hawaiian groups are protesting construction of the Thirty Meter Telescope on Mauna Kea during a gathering of scientists in Honolulu
Book Review: Modern Romance
Recommendations from Scientific American
Dark Matter Dominates Just-Discovered Galaxies
Astronomers have discovered more than 800 so-called "ultradiffuse galaxies" that are virtually invisible because they have relatively few stars and are mostly dark matter. Clara Moskowitz reports
Book Review: Persona
Books and recommendations from Scientific American
SpaceX Rocket Failure Threatens Support for Commercial Spaceflight
The destruction of an unmanned rocket Sunday comes at a tricky time for NASA and the International Space Station
Life in the Solar System: A Q&A with the Authors of The Expanse
Scientific American spoke with Daniel Abraham and Ty Franck about the science behind their books and the upcoming television series based on them
![What if Dark Matter Is Stranger Than We Thought? [Video]](https://static.scientificamerican.com/blogs/cache/file/B01B447E-716D-4473-89B21279ECEAA8AB_agenda.jpg?w=275&h=154&fit=crop)
What if Dark Matter Is Stranger Than We Thought? [Video]
The universe’s hidden stuff could be a mirror world of invisible particles and “dark atoms”
