Get your telescopes ready: Five planets to align on Monday
Scientists recommend finding a clear view of the western horizon and using binoculars to view the planets.
This artist's impression shows two Earth-sized worlds passing in front of their parent red dwarf star, which is much smaller and cooler than our Sun. The star and its orbiting planets TRAPPIST-1b and TRAPPIST-1c reside 40 light-years away.(photo credit: NASA, ESA, and G. Bacon (STScI)/Wikimedia Commons)Updated: