• November 28, 2013

    ISON Reaches Perihelion

    Comet ISON will hit its closest point to the Sun today this afternoon. Here's where you can follow the action:

    • NASA will monitor the approach live with a Google Hangout today from 1-3:30 p.m. EST. 
    • The Solar Dynamics Observatory expects to have images of ISON begin appearing between 12:45 and 1 p.m. EST.
    • Watch the Solar Terrestrial Relations Observatory (STEREO) coverage.
    • The Solar and Heliospheric Observatory will have images as well.