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Object Mass Owner Landing Location Ref. 67P/Churyumov–Gerasimenko: Philae: 100 kg (220 lb) ESA/DLR: 12 November 2014 "Abydos" Rosetta: 1,230 kg (2,710 lb) ESA 30 September 2016 "Sais" 433 Eros: NEAR Shoemaker: 487 kg (1,074 lb) NASA/APL: 12 February 2001: South of Himeros crater [1] 25143 Itokawa: Hayabusa target marker 0.6 kg (1.3 lb ...
A hypothetical Solar System object is a planet, natural satellite, subsatellite or similar body in the Solar System whose existence is not known, but has been inferred from observational scientific evidence. Over the years a number of hypothetical planets have been proposed, and many have been disproved.
In order to leave the Solar System, the probe needs to reach the local escape velocity. Escape velocity from the sun without the influence of Earth is 42.1 km/s. In order to reach this speed, it is highly advantageous to use as a boost the orbital speed of the Earth around the Sun, which is 29.78 km/s.
Hypothetical astronomical objects have been speculated to exist both inside and outside of the Solar System, and speculation has included different kinds of stars, planets, and other astronomical objects. For hypothetical astronomical objects in the Solar System, see: List of hypothetical Solar System objects
List of Solar System probes. List of active Solar System probes; List of space telescopes; Category:Lists of satellites orbiting Earth; List of extraterrestrial orbiters. List of artificial objects in heliocentric orbit, those that orbit the Sun; List of landings on extraterrestrial bodies
Voyager 1 and Pioneer 10 are the most widely separated human-made objects anywhere since they are travelling in roughly opposite directions from the Solar System. In December 2004, Voyager 1 crossed the termination shock , where the solar wind is slowed to subsonic speed, and entered the heliosheath , where the solar wind is compressed and made ...
Image credits: The inner detail #5 Solar Panels. While both solar panels and plant leaves harvest energy from the sun, a team at Princeton University took biomimicry in solar panels a step further ...
Solar System space probes operational as of November 2024. This is a list of active space probes which have escaped Earth orbit. It includes lunar space probes, but does not include space probes orbiting at the Sun–Earth Lagrangian points (for these, see List of objects at Lagrangian points). A craft is deemed "active" if it is still able to ...