The halo of the Milky Way is old. You’ve probably heard that a million times. But can we know more about its age than simply “it’s old”? Yes, we can — and that leads to interesting results!
Image credits: NASA/CXC/M.Weiss/Ohio State/A Gupta et al.
A look at a classic paper exploring a novel technique to select distant galaxies by waiting for them to drop out of the spectra…
There she blows! A detective case tracking the motion of material ejected from a star to figure out when the star exploded.
High resolution observations of the Orion Nebula show a complex collision between two extreme types of gas.
Astronomers have recently discovered a number of galaxies made almost entirely of dark matter. Today’s astrobite takes a closer look at one of them.
The largest structures of the universe lie within.