If a pulsing star exists near the center of our Milky Way galaxy, where a giant black hole is thought to lurk, it could shed light on the workings of Albert Einstein’s general theory of relativity, scientists say. The flashes of light from such a star, called a pulsar, could be used to determine how…
A new scientific instrument, a “time machine” of sorts, built by UCLA astronomers and colleagues, will allow scientists to study the earliest galaxies in the universe, which could never be studied before. MOSFIRE (Multi-Object Spectrometer For Infra-Red Exploration) will gather spectra, which contain chemical signatures in the light of everything from stars to galaxies, at…
A large research team from two major astronomy surveys reports in a paper submitted to the journal Physical Review Letters that scientists detected the movement of distant galaxy clusters via the kinematic Sunyaev-Zel’dovich (kSZ) effect, which has never before been seen. Now that it has been detected, the kSZ effect could prove to be an…
Officials at the U.S. space agency NASA say they uncovered the secrets of the supernova. New data from the Swift orbiting telescope have revealed exactly what leads to Type Ia supernovas, which astronomers now believe start as a white dwarf orbiting a companion star that pulls a stream of matter from it. As the gas…
More scientists are getting closer in the search for the “God particle” of physics that would help explain the fundamentals of the universe, but they haven’t found it yet. In the hunt for the Higgs boson, which is key to understanding why matter has mass, two teams of physicists using results from a now-closed American…
After the furies of birth, the mature cosmos now evolves more slowly. Stars will continue to form for as long as another 100 trillion years (about 10,000 times the present age of the universe), which leaves plenty of time for slow-building cosmic phenomena to occur. Check out Scientific American’s cosmic timeline.
In three stars far, far away, one of the rarest elements known to man has been spotted, improving our understanding about how heavy elements are created, bolstering evidence that a rare type of supernova may have been responsible for their creation. Tellurium — a brittle and toxic semiconducting metal — has for the first time…
13.7 billion years of evolution in 85 seconds.
Frenetic star-forming activity in the early Universe is linked to the most massive galaxies in today’s cosmos, new research suggests. This “starbursting” activity when the Universe was just a few billion years old appears to have been clamped off by the growth of supermassive black holes. An international team gathered hints of the mysterious “dark…
The leap second may live on for at least another three years. Once or twice a year, the leap second can be tacked on to synchronize atomic clocks — the world’s scientific timekeepers — with the Earth’s rotational cycle, which does not run quite like clockwork. Without the leap second, atomic clocks would diverge about…