Formation and evolution of the Solar System owe its substantially lower mass simply to having formed a few million years after Jupiter, when there was less gas available to consume. T Tauri stars like the young Sun have far stronger stellar winds than more stable, older stars. Uranus and Neptune are thought to have formed after Jupiter and Saturn did, when the strong solar wind had blown away much of the disc material. As a result, those planets accumulated little hydrogen and helium—not more than each. Uranus and Neptune are sometimes referred to as failed cores. The main problem with formation theories for these planets is the
Planet Lofoten Planet Lofoten Planet Lofoten is a Land Art Installation of the solar system positioned in the open nature of West Lofoten in Northern Norway. The Planets are made from stone and range in size from Jupiter at several hundred kilograms to Pluto at only a few grams, and ranges within an area of 30 km from Reine at Moskenes Island to Nordland at Værøy Island. The Sun is still in the construction process and will be a 7-meter diameter sphere made from steel circles, and will be placed at Reine in Lofoten. The scale of Planet Lofoten is 1: 200