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...se/> [[Perturbation (astronomy)|perturbed]] the perihelion distance closer to the Sun. During the 2009 apparition the comet became as bright as [[apparen ...rs.<ref name=jpl-close/> Between 2000–2050 the closest the comet will come to Earth is {{convert|0.76|AU|e6km e6mi|abbr=unit|lk=off}} in June 2042. ...

...nids]]). The comet currently has a [[minimum orbit intersection distance]] to Earth of {{convert|0.035|AU|e6km|abbr=unit}}.{{r|jpldata}} {{See also|List of minor planets and comets visited by spacecraft}} ...

...tical Science]] in [[Japan]]. Notably, [[NASA]] did not contribute a probe to the Halley Armada. *'''[[Giotto (spacecraft)|Giotto]]''' (596 km), the first space probe to get close-up color images of the nucleus of a comet. (ESA) ...

...|Stardust]]'' and ''[[Deep Impact (spacecraft)|Deep Impact]]'' missions to comets in the late 1990s and early 2000s. He had engineering oversight responsibil ...cite web|title=A&M-Texarkana Program for Learning and Community Engagement to present space engineer and author B. Gentry Lee|first=Erin |last=Rogers |da ...

...d'Arrest]].{{efn|In addition to 6P, Heinrich d'Arrest also discovered the comets [[C/1844 Y2]]{{r|jpl2}} and [[C/1857 D1]]{{r|jpl3}}}} ...latter three gases were found to be relatively depleted compared to other comets.{{r|Dello_Russo_2009}} ...

...ronomy]], in particular the study of distant [[comets]] and their relation to the early [[Solar System]]. She is also very active in professional-amateur ...he NASA Discovery missions EPOXI and Stardust-NExT. For all three of these missions she has coordinated the world's Earth-based and space-based observing progr ...

...re he served as the deputy PI.<ref name="jpl">{{cite web |title=Asteroids, Comets & Satellites: People - Peter Tsou |url=https://science.jpl.nasa.gov/people/ ...light-qualified variable [[density]] material and capture medium for space missions. ...

{{For|other comets also named Wilson|Comet Wilson}} ...om the 48-inch Schmidt telescope at Palomar. The image was enhanced by ESO to show the tail. ...

...pace Station|ISS]], [[Starlink]] satellites, and others. [[Space Shuttle]] missions were tracked until the program was [[Space Shuttle retirement|retired]] in ...tty">{{cite web|url=http://skyandtelescope.com/observing/celestial-objects-to-watch/take-a-sat-seeing-tour/|title=Take a 'Sat-seeing' Tour|last=Beatty|fi ...

...m/browse/litho- |title=litho |publisher=Dictionary.com}}</ref> substituted to indicate the spacecraft is intersecting the planet's solid [[lithosphere]] ...owell]],<ref name=McDowell/> "Lithobraking reduces the [[apoapsis]] height to zero instantly, but with the unfortunate side effect that the spacecraft do ...

...fornia, San Diego]] in 1968, where he studied under [[Harold Urey]]. Prior to joining the University of Arizona, Lewis taught [[space sciences]] and [[co ...network [[China Central Television|CCTV]] when China broadcasts its major missions live. ...

{{short description|Cancelled NASA mission to explore Comet 22P/Kopff}} ...eled when it went over budget; most of the money still left was redirected to its twin spacecraft, ''[[Cassini–Huygens]]'', destined for [[Saturn]], so i ...

...iled shortly after its July 2002 launch. It was the only Discovery mission to fail. ...ft|sp=us}}, performing spectral mapping of the nuclei at resolutions of up to {{convert|100|m|ft|sp=us}}, and obtaining detailed [[compositional data]] o ...

...direction of American astronomer [[Eleanor Helin]] (JPL/Caltech) from 1985 to 1988. During this period,<ref name="MPC-Discoverers" /> Stephen Brewster wa ...ct at Stony Ridge in 2000 to encourage observations of faint asteroids and comets. ...

'''Hubble search for transition comets''' ('''Transition Comets—UV Search for OH Emissions in Asteroids''') was a study involving amateur [ ...f seven national amateur astronomy organizations met at STScI in Baltimore to discuss the participation of amateur astronomers in the HST project.<ref>{{ ...

...[[Viking lander]]. He received the [[Oparin Medal]] for his contributions to the field of [[origins of life]]. ...ic chemistry]], at the [[University of Barcelona]] in 1947. He first tried to earn a living as a chemist, but that did not work, so he spent three years ...

The satellite is still functioning nominally (June 2025) and is expected to deorbit in 2026.<ref name="odinsLastYear">{{Cite web | title=Odin is now in ...a 1.1 m telescope, designed to be used for both the astronomy and aeronomy missions. The radiometer works at 486–580&nbsp;GHz and at 119&nbsp;GHz. The second i ...

...aftermath of collisions between similar-sized planetoids during the middle to late stages of terrestrial planet formation. ...7-07-19}}</ref> He is currently a principal advocate of a mission strategy to obtain a medical-like scan of the detailed interior structure of a Jupiter- ...

...etary geology is named as such for historical and convenience reasons; due to the subject matter, it is closely linked with more traditional Earth-based ...also included in the field of planetary geology, especially when it comes to their interiors. Fields within Planetary geology are largely derived from f ...

...021 season, the league operated as the Triple-A West before switching back to its previous moniker in 2022. |Relocated to [[Portland, Oregon]], as the [[Portland Beavers]] ...