An ecosystem is a community of all living organisms in a certain area, including human beings. In the marine ecosystem, for instance, every organism living in the ocean (fish, animal, plant, etc.) has its own role within the community. This balance can be ruined by... click to read more

With each new spacecraft launch, we become more familiar with today's Solar System, from our nearest neighbor planets to those in cold and distant outer orbits, yet the details of how the Solar System formed and evolved to its present state remain a mystery. We... click to read more

Prior to NASA's New Horizons mission to Pluto in July 2015, the highest resolution image of the dwarf planet was just twelve pixels across the whole world. New Horizons' images, from its single 30000 mph fly-by, were at best around 80 m per pixel, and... click to read more

Ecosystems are characterized by a remarkable ability to withstand changes in the environment. Your favorite meadow may look different in hot and dry year, compared to one with abundant rain, because the most common species in each year may be very different. However, you will... click to read more

Our solar system did not form in isolation from the rest of the Galaxy. It was part of a star cluster where each member has its own planets and asteroids. The close proximity of the cluster members favored strong gravitational interactions that pulled asteroids and... click to read more