News Archive / Tagged: Planet
Proxima Centauri, the star closest to our Sun, may host a third planet that has just 25% the mass of Earth, according to a new study published in the journal Astronomy and Astrophysics.
Scientists Ron Ekers and Alan Stern debated the planet definition and the status of Pluto in an event sponsored by the Philosophical Society of Washington.
Is Titan similar to Earth? New data from the Cassini orbiter suggests it is.