The Milky Way has a history of devouring its neighbors, the smaller satellite galaxies that orbit it. Over time our galaxy’s gravity will tug on the near sides of these satellites more strongly than their far sides, slowly stretching them out until they tear apart and their stars assimilate into the Milky Way.
For predation, defense or dominance, evolution has weaponized bodily features on many species to give them the upper horn, tusk, tooth or pincer in the fight for survival
Stephen Hawking is one of our greatest living geniuses—his insights into the nature of black holes, space and time have truly revolutionized physics.
If dark matter comes in both matter and antimatter varieties, it might accumulate inside dense stars to create black holes
In Scalzi’s thriller, Lock In, people can mentally inhabit robotic bodies
Theoretical physicist Nima Arkani-Hamed will present a free live Webcast on the latest insights into the nature of spacetime from the quantum world
These particles should not have mass, but they do. By sending neutrinos through the ground from Illinois to Minnesota, physicists hope to learn why
The cause of the deadly crash of Virgin Galactic's SpaceShipTwo on Friday remains unknown, but the commercial spaceplane's feathered reentry system looks to have been involved.
We cannot cancel out gravity, but planes nicknamed “vomit comets” can come close
Unexplained gamma rays streaming from the galactic center may have been produced by dark matter, but more mundane explanations are also possible
Health care emergency management expert Kristin Stevens tells us what went wrong in Dallas, and how we can do better
Take part in a citizen-science project by helping researchers track high-energy cosmic rays via a network of smartphone users. Clara Moskowitz reports
If or when we make contact with extraterrestrials, the effect on our religious sensibilities will be profound, says astronomer David Weintraub
For the first time two spacecraft will soon make up-close studies of objects from the solar system’s Kuiper Belt, a mysterious region beyond Neptune’s orbit.
Scientific American readers snapped these views of the October 8 total lunar eclipse from the United States and Australia
An interview with the author of WTF Evolution?, a book and blog on the oddities of nature
Books and recommendations from Scientific American
Nine scientists became new Nobel Laureates this week when the 2014 Nobel Prizes in Chemistry, Physics and Physiology or Medicine were announced.
Astronomers have discovered one of the largest and most complex organic molecules yet in a gaseous star-forming region of interstellar space. Clara Moskowitz reports
Isamu Akasaki, Hiroshi Amano and Shuji Nakamura won the 2014 physics prize for the invention of the blue light–emitting diode