One of the first signs that things are about to get creepy in a scary movie is when the lights start to flicker. 🕯️ That happens all the time in space, too! Sometimes it happens because the objects themselves are changing, such as stars that pulse like beating hearts or flare up in dramatic explosions. Other times, objects simply cross paths from our vantage point as they traverse the galaxy, distorting or blocking light from background stars. Roman will watch for these flickers to find all kinds of objects that haunt our galaxy, from small icy objects in Pluto’s realm to stellar corpses (black holes and neutron stars) found much farther away. #NASAHalloween https://go.nasa.gov/46JBKs0 Music credit: "Elapsing Time" and "Beyond Truth" from Universal Production Music Credit: NASA's Goddard Space Flight Center Producer: Scott Wiessinger (KBR Wyle Services, LLC) This video can be freely shared and downloaded at https://go.nasa.gov/46J0xMT. While the video in its entirety can be shared without permission, the music and some individual imagery may have been obtained through permission and may not be excised or remixed in other products. Specific details on such imagery may be found here: https://go.nasa.gov/46J0xMT. For more information on NASA’s media guidelines, visit https://go.nasa.gov/3S6SDsk. If you liked this video, subscribe to the NASA Goddard YouTube channel: https://go.nasa.gov/3S8SZP1 Follow NASA’s Goddard Space Flight Center · Instagram: https://go.nasa.gov/3QcChvJ · X: https://go.nasa.gov/46Hsg0B · Facebook: https://go.nasa.gov/46FQ84x · Flickr: https://go.nasa.gov/46JnT53