Cosmology Research update Galaxy surveys put cosmology on sound footing Astrophysicists have linked the large-scale structure of the universe to the early universe
Read article: Why stalactites are all similar Soft matter and liquids Research update Why stalactites are all similar Computer model predicts how limestone structures grow in underground caves
Stars and solar physics Research update X-ray satellite chalks up black hole first Astronomers see material complete a full orbit around a supermassive black hole
Microscopy Research update Making microscopes go faster New approach improves the time resolution of AFMs
Transport properties Research update Nanotubes respond to gas attacks Collisions lead to changes in the electronic properties of single nanotubes
Semiconductors and electronics Research update Nanowires form atomic switch Quantum device could herald a new era of electronics
Read article: All-silicon laser makes its debut Semiconductors and electronics Research update All-silicon laser makes its debut Intel researchers report photonic first
Read article: Microlever feels the chill Nanomaterials Research update Microlever feels the chill New approach could allow force microscopes to operate in the quantum regime
Read article: Supercool helium ions make their debut Low-temperature physics Research update Supercool helium ions make their debut "Sympathetic cooling" could lead to new tests of fundamental physics
Telescopes and space missions Research update Science selects “Water on Mars” as breakthrough of the year Results from the red planet top magazine's list of research highlights from 2004
Physics World podcast Explore our two regular podcast series, Physics World Weekly and Physics World Stories