All-sky spectroscopy with SDSS-V
A spectrum is worth a thousand pictures. But all-sky spectra? Well, I bet they are worth many many thousands of pictures — introducing SDSS-V.
A spectrum is worth a thousand pictures. But all-sky spectra? Well, I bet they are worth many many thousands of pictures — introducing SDSS-V.
In the study of structure formation in the universe, the ‘missing satellite galaxies’ problem is said to be almost solved. Is today’s paper the final nail in the coffin?
There’s lots of them out there. The answer to some of the mysteries of the universe could be hidden in their numbers.
Abundance analysis, or chemical tagging, is widely use to identify stars with a common birth. But is a similar abundance alone enough to identify siblings? Can’t stars have doppelgangers?
Today’s ‘beyond’ bite takes you back to 2000, when a new telescope meant to survey the night sky takes the astrophysics community by storm.
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.