Astronomers Find 70 Planets Without Stars Floating Free in the Milky Way - Universe Today universetoday storybywill
“The vast majority of our data come from ESO observatories, which were absolutely critical for this study. Their wide field of view and unique sensitivity were keys to our success. We used tens of thousands of wide-field images from ESO facilities, corresponding to hundreds of hours of observations, and literally tens of terabytes of data.”
This discovery also means that astronomers will have nearly twice the data set they previously had, which will come in handy when follow-up observations happen in the near future. This large sample is already helping astronomers refine their theories about the nature and origin of rogue planets. Basically, the number of FFPs observed in the Upper Scorpius association exceeds what astronomers would expect if they only formed as stars do in the interstellar medium.
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