Exoplanet researchers determine the occurrence rate of rocky planets in the habitable zones of nearby Sun-like stars.
Read MoreEarly data is released from the Dark Energy Spectroscopic Instrument, which will obtain optical spectra for tens of millions of galaxies and quasars, enabling astronomers to measure the effect
Read MoreThe second version of astropy is released, highlighting the commitment of the astronomy community to open science and open software. The Astropy Collaboration et al. 2018
Read MoreEvidence is found for a distant giant planet in our solar system, dubbed Planet Nine. [Image credit: Caltech/R. Hurt (IPAC); Diagram created using WorldWide Telescope.] Batygin & Brown 2016
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