An all-sky view of stars in our Galaxy – the Milky Way – and neighbouring galaxies, based on the first year of observations from ESA’s Gaia satellite, from July 2014 to September 2015. Credit: ESA/Gaia/DPAC
The first catalogue of more...
By identifying stars from smaller galaxies long ago swallowed up by our own, Gaia will help scientists better understand the Milky Way's origin and evolution
The European Space Agency will unveil on Wednesday a three-dimensional map of a billion stars...
This image of the Stingray nebula, a planetary nebula 2400 light-years from Earth, was taken with the Wide Field and Planetary Camera 2 (WFPC2) in 1998. In the centre of the nebula the fast evolving star SAO 244567 is...
Reionization as illustrated by data from the Hubble and Chandra space telescopes. Credit: NASA/CXC/M.Weiss
Two papers published by an assistant professor at the University of California, Riverside and several collaborators explain why the universe has enough energy to become transparent.
The...
Curiosity got close to this outcrop on Sept. 9, 2016, which displays finely layered rocks.Credit: NASA/JPL-Caltech/MSSS
The layered geologic past of Mars is revealed in stunning detail in new color images returned by NASA's Curiosity Mars rover, which is currently...
An artist's rendering (not to scale) of a cross-section of the magnetosphere, with the solar wind on the left in yellow and magnetic field lines emanating from the Earth in blue. The five THEMIS probes were well-positioned to directly...
Two recent models for the formation of the moon, one that allows exchange through a silicate atmosphere (top), and another that creates a more thoroughly mixed sphere of a supercritical fluid (bottom), lead to different predictions for potassium isotope...
An artist’s rendering of a very distant quasar courtesy of ESO/M. Kornmesser.
Quasars are supermassive black holes that sit at the center of enormous galaxies, accreting matter. They shine so brightly that they are often referred to as beacons...
Credit: X-ray: NASA/CXC/University of Amsterdam/N.Rea et al; Optical: DSS
Using NASA's Chandra X-ray Observatory and other X-ray observatories, astronomers have found evidence for what is likely one of the most extreme pulsars, or rotating neutron stars, ever detected. The source...
Hubble Space Telescope Observation of the central region of the Galactic globular cluster NGC 6101: Compared to the majority of Galactic globular clusters, NGC 6101 shows a less concentrated distribution of observable stars.Credit: NASA
New research by the University of...
Andrew Wetzel's simulation shows stars in the Milky Way-like galaxy on the left and the same region's dark matter on the right. Image is provided courtesy of Andrew Wetzel. Credit: Andrew Wetzel.
Dwarf galaxies are enigmas wrapped in riddles. Although...
