New constraints on the migration of Neptune in the early Solar System.
Sites on Earth that are similar to geologic features on other planets can be studied to better understand other worlds and even prepare for future exploration.
A team of scientists led by Dr. James Green at NASA’s Headquarters in Washington, DC, have shown that the Earth and Moon may once have shared a protective magnetic shield that sheltered the young Earth’s atmosphere from erosion by the solar wind.
Mercury is the smallest planet but has the largest core compared to its size. Is the solar wind to blame?
Can ephemeral, salty puddles on the surface of Mars sustain life?
How could we measure winds on a distant brown dwarf or a Jupiter-like planet?