Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new simulations show. By Katherine Kornei If our species manages to hang on ...

"All star charts and planet-location diagrams plotted by Her Majesty's Nautical Almanac Office, Royal Greenwich Observatory"--P. 224. Universe -- What is a star? -- Star families and variable stars -- ...

How big it is: 865,000 miles (1.392 million kilometers) across How far away it is: 93 million miles (150 million km) What type of star it is: A yellow dwarf star The sun is the star at the center of ...

Travel through time to witness some of the most remarkable episodes in our solar system's history, uncovering its ancient ...