Heyn, in action in Baltimore's Fells Point with that night's feature attraction: Jupiter's moons. Kevin and Sonia McCarthy/Courtesy of Herman Heyn hide caption

itoggle caption Kevin and Sonia McCarthy/Courtesy of Herman Heyn

Dwarf planet Ceres is seen in the asteroid belt between Mars and Jupiter, where it resides well away from Earth. NASA is hoping to quell online rumors that a massive near-Earth asteroid is due to hit us next month. NASA/Reuters/Landov hide caption

itoggle caption NASA/Reuters/Landov

An artistic conception of the Jupiter-like exoplanet, 51 Eridani b, seen in the near-infrared light that shows the hot layers deep in its atmosphere glowing through clouds. Danielle Futselaar & Franck Marchis, SETI Institute hide caption

itoggle caption Danielle Futselaar & Franck Marchis, SETI Institute

A new study shows energy output from 200,000 galaxies is half what it was billions of years ago. It's further evidence the universe is slowly declining. This undated NASA Hubble Space Telescope image shows the spiral galaxy NGC 1512 captured in all wavelengths from ultraviolet to infrared. Kevin Dietsch/UPI/Landov hide caption

itoggle caption Kevin Dietsch/UPI/Landov

It took astronauts 33 days to grow enough red romaine lettuce to make a small salad. NASA hide caption

itoggle caption NASA