Our solar system seems like a neat and orderly place, with small, rocky worlds near the Sun and big, gaseous worlds farther out, all eight planets following orbital paths unchanged since they formed.
Cambridge, MA – All stars begin their lives in groups. Most stars, including our Sun, are born in small, benign groups that quickly fall apart. Others form in huge, dense swarms that survive for billions of years as stellar clusters.
Cambridge, MA – Spiral galaxies are some of the most beautiful and photogenic residents of the universe. Our own Milky Way is a spiral.
Cambridge, MA – Even dying stars could host planets with life – and if such life exists, we might be able to detect it within the next decade.