Marble is a virtual globe and world atlas — your swiss army knife for maps that you can use to learn more about the Earth and other planets. …อ่านต่อไปหินอ่อน
KStars is a Desktop Planetarium by KDE. It provides an accurate graphical simulation of the night sky, from any location on Earth, at any date and time. …อ่านต่อไปเคสตาร์ส
