Thanks to the discovery of five twinkling galaxies in a rare alignment, astronomers have been able to calculate — for the first time — the properties and geometry of an invisible gas cloud in space.
Artist’s impression of a quasar shining through a galaxy’s ‘super halo’ of hydrogen gas.
A. Angelich (NRAO/AUI/NSF)
Astronomers are surprised by what they're finding out about galaxies that formed in the early days of our universe, now that sensitive telescopes allow direct observation, not the inference of old.
A burst of ghostly neutrinos may have been generated by a quasar like this.
A burst of neutrinos detected deep under the Antarctic ice may have originated from a distant quasar on the edge of the visible universe.
CSIRO’s Compact Array telescope under the Milky Way.
Astronomers think they may have found evidence within our galaxy of some of the missing matter thought to make up our universe.
If the signs are right, fundamental equations of cosmology may need altering.
A radical discovery by my colleagues and I – reported this week in Physical Review Letters – could help explain why it was possible for life (at least as we know it) to develop on Earth, but not in other…