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...agnetometer boom of a Voyager spacecraft, the boom allows the magnetometer to make observations with less interference from the spacecraft itself]] ...ing magnetometers,{{example needed|date=December 2018}} including attempts to define the shape and activity of [[Saturn]]'s core. ...

...owered by radioactive decay and can keep components from becoming too cold to function, potentially over a span of decades.<ref name=doe1>{{cite web|titl ...hka reactor]], which used uranium and direct [[thermoelectric]] conversion to electricity,<ref name="Romashka reactor-converter">{{cite journal|last=Pono ...

A '''planetary coordinate system''' (also referred to as '''''planetographic''''', '''''planetodetic''''', or '''''planetocentric ...2, pps. 373-393, January 10, 1971.</ref> the four [[Galilean moons]] of [[Jupiter]],<ref>[[Merton E. Davies]], Thomas A. Hauge, et al.: Control Networks for ...

{{Short description|Features of the moon of Jupiter}} ...e ''[[Galileo (spacecraft)|Galileo]]'' and ''[[Voyager program|Voyager]]'' missions.]] ...

{{short description|Ratio of a slightly volatile element, potassium (K), to a highly refractory element, uranium (U).}} ...]](K), to a highly refractory element, [[uranium]] (U). It is a useful way to measure the presence of volatile elements on planetary surfaces. The K/U r ...

{{Short description|Cancer causing exposure to ionizing radiation in spaceflight}} ...cut and paste from the public domain study by NASA). It needs to be moved to a more encyclopedic topic heading, perhaps something like [[Cancer and spac ...

{{short description|Astronomical object not gravitationally bound to a star}} {{Not to be confused with|Extrasolar object}} ...

...duced breakdown spectroscopy|laser-induced breakdown spectroscopy (LIBS)]] to accurately characterize the physical and chemical properties of these parti ...[triangulation (surveying)|triangulation]]. Atmospheric entry speeds of up to 72,000&nbsp;m/s have been observed for [[Leonid meteor shower|Leonid]] mete ...

Disposing large quantities of waste heat must be considered in order to realize a large-space structure (LSS) that handle high power such as a [[Nu | mission to Mars ...

...rce in the center of the image, while background stars appear streaked due to the speed of {{okina}}Oumuamua as the telescope tracked it.<ref name="apod- ...moving objects) around 1 January 2018. By late 2019, it should have dimmed to 34 mag.}} ...

...ntal]], [[molecule|molecular]], and [[mineral]]ogical composition in order to obtain information on the [[astronomical object]]s occurring in [[outer spa Three phenomena that relate (we know today) to cosmic dust were noticed by humans for millennia: [[Zodiacal light]], [[com ...

...the planetary centre, they do not experience appreciable changes on a day-to-day basis from the motion of the moons.</ref> ...9) occurs on 2042-Sep-04 at 29.80647406au during a rdot flip from negative to positive|publisher=NASA/JPL|access-date=7 September 2021|archive-date=7 Sep ...

...server Location: @sun (Perihelion occurs when deldot changes from negative to positive. Uncertainty in time of perihelion is [[3-sigma]].)</ref><br/>±17 ...av = {{Gr|1|dateform=dmy.20|466|2}} m/s² at poles<br />{{nowrap|to {{Gr|1|dateform=dmy.20|643|2}} m/s² at longest axis}} ...

...n since, most notably in the [[Persian Gulf War]], which has been referred to as the "first space war." The [[Strategic Defense Initiative]] and creation ...f establishing a Space Force was resurrected in the late 2010s in response to Russian and Chinese military space developments, resulting in the Space For ...

...gray and red sphere representing the Earth lies against a black background to the right of an orange circular object representing the Sun|Artist's concep ...r-link = Nicholas Rescher | title = Predicting the future: An introduction to the theory of forecasting | date = 1998 | publisher = State University of N ...