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Results tagged with planetary-science
Search options questions only
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user 12102
The study of planets, asteroids, comets, etc, including weather, geology, composition, etc. This tag should be used when the focus of the question is on the the science of a non-Earth non-star natural object, and not used when designing spacecraft to cope with said challenges.
5
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Will the ExoMars rover offer some unique science capability?
The BBC article Europe's science ministers to decide on ExoMars rover describes a substantial amount of discussion and soul-searching about the level of funding and capabilities for the rover part of …
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4
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What are the technologies that can identify, validate, and quantify water-rich locations on ...
As the discussion progresses from the likelihood that there is water on Mars through yes, near the poles, now to to Is there really a frozen lake near the equator on Mars? and There's a lot of subsurf …
- 151k
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Moon's South Pole-Aitken basin mass anomaly, how to reconcile "isostatic equilibrium" with "...
The recent Phys.org piece Mass anomaly detected under the moon's largest crater is a review of a recently published and paywalled Geophysical Research Letter Deep Structure of the Lunar South Pole‐Ait …
- 151k
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What is "Planetary Defense", and what are the threats one can potentially defend against?
The planetary-defense tag has the current (my) awkwardly-written description.
related to the defense of a planet from a major destructive event such as an impact, or searches for or studies of object …
- 151k
3
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Would the >100 km "knee" in Earth's atmosphere still be where MFP exceeded scale height if i...
There is currently one answer to How many solar system bodies have "knees" in their atmospheres? that points out that somewhere above roughly 100 km turbulent mixing drops off (thus the name turbopaus …
- 151k
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BBC: "In 2009 Prof McDowell & other astronomers performed an experiment in which a similar-s...
The line following the title of BBC's Elon Musk SpaceX rocket on collision course with moon reads:
A rocket launched by Elon Musk's space exploration company is on course to crash into the Moon and e …
- 151k
5
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Is Lunar Horizon Glow still a thing? Has the "dust settled" on the topic?
The title gets its inspiration from Is the Flyby Anomaly still a thing? but the topic is different.
The Lunar Horizon Glow is a phenomenon observed by some of the Surveyor missions. While the Sun is …
- 151k
5
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How were scientists able to experimentally confirm that Saturn's ravioli-shaped moons had hi...
The NASA News article NASA's Cassini Finds Saturn's Rings Coat Tiny Moons says:
The new research, from data gathered by six of Cassini's instruments before its mission ended in 2017, is a clear confi …
- 151k
4
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1
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How are martian dust devil maps made?
The Gizmodo article A Martian Dust Devil Swept Right Over NASA’s InSight Lander says:
What’s unique about this most recent event, however, is that InSight was able to gather other forms of evidence t …
- 151k
2
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Just how huge is Mars' cloud of hydrogen?
NASA Goddard's July 2018 press release NASA’s MAVEN Spacecraft Finds That “Stolen” Electrons Enable Unusual Aurora on Mars says:
But two puzzles make this type of aurora seem impossible at first glan …
- 151k
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How many planets have had their limbs scanned with radio signals?
This answer to When did planetary scientists realize Venus' surface pressure was almost 100x that on Earth? How did they find out? describes one example of scanning the limb of a planet using transmit …
- 151k
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How did Mariner 2's ridged radiometer dish focus two microwave bands but diffuse IR?
edit: more photos of a model of Mariner 2 here at Historic Spacecraft's Mariner_2.
The images and quote are from the book Space Probes and Planetary Exploration William R. Corliss (written under the …
- 151k
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Just how steep are Pluto's tallest ice mountains?
This answer to How tall are Pluto's mountains? Are they the tallest ice features in the Solar System? is worth a read and an upvote and says they are upwards of 3,500 meters and most likely water ice! …
- 151k
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Why exactly would "permanently shadowed polar lunar craters... have substantially higher lev...
Researching this answer led to ³He in permanently shadowed lunar polar surfaces published in Icarus. The abstract is tantalizing but terse:
Abstract
Because of their cryogenic temperatures, analysis …
- 151k
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Are there both "lake" and "sea" designations on Titan? Officially or otherwise?
@TomSpilker's excellent answer to How (the heck) do they know some lakes on Titan are 100 meters deep? says at the very end:
As far as the lakes (smaller than the seas) go, as the sources you cite …
- 151k