Time-lapse of the Cosmic Infrared Background Experiment (CIBER) rocket launch, at NASA’s Wallops Flight Facility in Virginia in 2013

NASA launched CIBER in 2010 and 2012, so far it has already completely changed how we view galaxies. Instead of forming an absolute boundary of stars, CIBER is teaching us that as many as half of all stars may lie outside of galaxies, and maybe galaxies are more like an interconnected sea of stars. — NASA

We don’t really know what dark matter is, but current theory says it makes up 27% of the universe. So what DO we know? That dark energy seems to be increasing through an exchange with dark matter, but we have no idea why. — ScienceDaily

On October 19, 2014 Comet Siding Spring flew really closely by Mars, and scientists have since been analyzing all the data points. The article also includes a short video of the Comet.– NBCNews