Outer solar system
- Nov 1, 2005A team of astronomers at Southwest Research Institute (SwRI) and other institutions has discovered that Pluto has two previously unseen moons. Ground-based observers discovered Pluto's only previously known moon, Charon, in 1978. The planet itself was discovered in 1930.
- Jul 23, 2005In a feat of astronomical and terrestrial alignment, a group of scientists from MIT and Williams College recently succeeded in observing distant Pluto's tiny moon, Charon, hide a star. Such an event had been seen only once before, by a single telescope 25 years
- Dec 30, 2004Counting down the top ten astrobiology stories for 2004 highlights the accomplishments of those exploring Mars, Saturn, comets, and planets beyond Pluto. Number six in this countdown was the discovery of potential heat sources for ice beyond Pluto, an important finding if water is considered
- Sep 26, 2003Using the Hubble Space Telescope, astronomers have found two of the smallest moons yet in the Uranus satellite system. Measuring a minute eight miles, two of the small moons had previously eluded detection from the much closer view offered from the Voyager 2 flyby of