Search results
Results from the WOW.Com Content Network
Montage of planets and some moons that the two Voyager spacecraft have visited and studied. It is the only program that visited all four outer planets. A total of nine spacecraft have been launched on missions that involve visits to the outer planets; all nine missions involve encounters with Jupiter, with four spacecraft also visiting Saturn.
Neptune's rings had been observed from Earth many years prior to Voyager 2 's visit, but the close inspection revealed that the ring systems were full circle and intact, and a total of four rings were counted. [4] Voyager 2 discovered six new small moons orbiting Neptune's equatorial plane, dubbed Naiad, Thalassa, Despina, Galatea, Larissa and ...
4.0: 1942 Stardust: 2002 3,079: 1,230: Flyby 25143 Itokawa: 0.5 × 0.3 × 0.2 (350 meters) 1998 Hayabusa: 2005 landed: landed: Landed; returned dust samples to Earth in 2010 - first sample return mission from asteroid; smallest asteroid visited by a spacecraft, first asteroid visited by a non-NASA spacecraft. 2867 Šteins: 4.6: 1969 Rosetta ...
Telescope data may have helped researchers figure out why. Four years ago, astronomers noticed the abundant clouds on Neptune had largely disappeared. Telescope data may have helped researchers ...
The timeline of discovery of Solar System planets and their natural satellites charts the progress of the discovery of new bodies over history. Each object is listed in chronological order of its discovery (multiple dates occur when the moments of imaging, observation, and publication differ), identified through its various designations (including temporary and permanent schemes), and the ...
Trajectories of Voyager 1 and Voyager 2. The Grand Tour is a NASA program that would have sent two groups of robotic probes to all the planets of the outer Solar System.It called for four spacecraft, two of which would visit Jupiter, Saturn, and Pluto, while the other two would visit Jupiter, Uranus, and Neptune.
Twelve people have walked on the surface of the Moon during the Apollo program, at a cost of more than $25 billion. Granted, it's not something everyone gets to experience.
In certain cases radar imaging has produced images with up to 7.5-meter resolution. The Moon is comparatively close and was studied by radar soon after the invention of the technique in 1946, [54] mainly precise measurements of its distance and its surface roughness. Other bodies that have been observed by this means include: