Astronomers - Comprehension Worksheet
Astronomers Discover Fifth Planet Orbiting a Distant Star
Astronomers on Tuesday announced the discovery of another planet orbiting a distant star, making it the most crowded planetary system outside our own. More than 260 planets have been identified outside our solar system. The most recently discovered exoplanet, as they're called, orbits a star in the constellation Cancer.
According to Geoff Marcy of the University of California, one of the authors of a new paper announcing the discovery, astronomers already knew the star had four planets.Read More...