This is How Saturn’s Rings Would Look to a Butterfly

You don’t typically see Saturn’s rings looking like this, but then you can’t see in ultraviolet like Cassini (or many insects) can! The image above was acquired by the UVIS (UltraViolet Imaging Spectrograph) instrument aboard the Cassini-Huygens spacecraft on June 30, 2004, just as it was entering orbit around Saturn. The area shown here is…

Ultra Magnetism

Revealed in extreme ultraviolet light, our sun’s looping magnetic field lines are visible (watch in HD!) in this video from NASA’s Solar Dynamics Observatory (SDO) satellite. The action spans a two-day period from June 6 – 7, 2010, and features two particularly magnetically-active regions on the sun’s surface. Superheated solar material is caught up in…

Blue Light Special

  The European Space Agency’s SOHO (Solar and Heliospheric Observatory) satellite returned this image today of the sun, taken in ultraviolet light at one-million-degree temperature wavelengths. Bright, twisted areas are regions of hotter storminess while darker spots are cooler zones called coronal holes. The SOHO satellite is positioned in orbit around the sun just inside…