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Questions tagged [weather]

Questions regarding ways weather can be forecasted and managed.

11
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1answer
191 views

Are there microclimates with better weather conditions on Mars?

On Earth, a microclimate mostly refers to an area which differs from the surrounding areas in temperature or humidity. And what about Mars ? Are there places with atmospheric conditions that are ...
6
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0answers
112 views

How did “the kid” (John Meisenheimer) calculate that there was a wave in the jet stream and Explorer 1 would be okay to launch?

This tough question links to the NASA YouTube video NASA 60th: How It All Began which shows a lot of really nice, historical file footage and stills. After about ...
19
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2answers
3k views

Will SpaceX delay launches, if the landing site weather is unacceptable?

With the initial landing attempts, it was not a big deal, twas all an experiment and they only reused Block 1-4 boosters once at best. So holding a launch because of weather at the landing site ...
5
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2answers
125 views

Have weather satellites been sent to other planets?

Has an orbiting weather satellite, similar to those used around Earth, been sent to other planets to study their atmospheric weather? I am curious if a weather satellite is generic enough to serve ...
5
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1answer
92 views

Would landing on mars during a storm considerably increase atmospheric drag?

Any chance we could harvest all those dust particles for an significant improvement in aero-breaking capabilities or would it destroy most heat-shields?
6
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1answer
100 views

How much does pressure on Mars change with weather?

A great answer about the Mars atmosphere and water triple point shows there is a region on Mars where clean liquid water slightly above 0°C can exist on the surface. I still wonder, though, how ...
6
votes
3answers
289 views

What is the warmest place on Mars?

What is the warmest place on the Martian surface? What temperatures are seen there? (day, night, seasons, etc.) I am asking about weather; not anything out of the ordinary such as a volcano.
9
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2answers
267 views

Do smaller rockets require better weather at launch than larger ones?

The Spaceflight Now article Rocket Lab test launch halted by ship traffic, deteriorating weather mentions that the recent planned launch of the Electron rocket was cancelled due to a combination of ...
6
votes
1answer
249 views

Has an astronaut ever seen pixies, ELVEs, sprites or blue jets (without a camera)?

The NASA Science video ScienceCasts: A Display of Lights Above the Storm shows several examples of Transient Luminous Events (TLEs) (Upper Atmospheric Lightning) being filmed by high-sensitivity ...
7
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2answers
678 views

What is KSC's HURCON II?

HURCON II sounds like DEFCON 2, the 2nd highest level of five levels of The DEFense readiness CONdition (DEFCON); an alert state used by the United States Armed ...
0
votes
1answer
101 views

What responsibilities does the Hurricane Harvey OPS team have, and what challenges?

Here is a tweet from NASA flight director Royce Renfrew's personal twitter account. I believe at least some of the Hurricane Harvey OPS team is on-site at Johnson Space Center but the work might be ...
1
vote
1answer
256 views

Do the SpaceX ASDS orient themselves in a particular direction before a landing? Is there a “landing ellipse”?

The SpaceX Autonomous spaceport drone ships have longer and shorter direction, both for the flat, apparently land-able area, and total footprint in the water. The ships have vertical projections at ...
1
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0answers
74 views

Was the telltale on the Mars Phoenix Lander used for meteorology? Why not a hot wire anemometer instead?

Reading about ping pong ball anemometers I discovered that the Mars Phoenix Lander had an anemometer of this design, and there are images and GIFs of it moving. When imaged from one or two different ...
7
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1answer
132 views

How can I find a daily record of the temperature on Mars?

Does any probe or lander track the temperature on Mars, and is this data published anywhere? I recall the MGS used to issue a "Martian Weather Report", but it has ceased operating.
12
votes
1answer
234 views

Does Venus have doldrums or horse latitudes (latitudes with lower winds)?

Because of all the heat fueling convection cells, Venus has some brisk winds especially in the upper atmosphere (up to 370 km/h). I realize the winds are quite slow at the surface, but are there any ...
4
votes
1answer
94 views

Acid fog on Mars?

Recently a study on the data from the Spirit rover in Gusev crater suggested that there may be acid fog changing the rocks. What exactly is this acid fog? How is it formed on Mars and where? Is it ...
5
votes
1answer
520 views

Lightning on Mars?

I watched the movie The Martian, and there is a brief scene where there is lightning on Mars. Something about this seems unlikely to me, but I can't remember if it's actually possible or not. Is there ...
6
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3answers
810 views

Were there any issues with wind on rockets / shuttle?

In architecture and engineering obviously wind and wind shear are important issues for tall buildings. I understand that weather is an important condition for the launch of rockets or the hundreds of ...
8
votes
1answer
283 views

What are the known historic global and regional dust storms on Mars?

What is the actual calendar of observed global dust storms on Mars? And if available, any data about regional dust storms' dates, duration and coverage. I find online information about global Martian ...
6
votes
1answer
244 views

Why does Jupiter have the colors it does?

This was sparked by an interesting conversation in the chatroom. We were discussing how Jupiter, being made of gas, has a lot of color. Looking into it, I found this statement, from Universe Today: ...
5
votes
1answer
990 views

How good does the weather have to be for a rocket launch?

I'm watching a launch sit on hold because the sky is overcast. The announced hold reason was "thick cloud cover, anvil cloud". So they have a checklist. What is on that checklist? How do they assess ...
10
votes
2answers
361 views

Does the Venusian atmosphere's “super rotation” actually rotate?

The atmosphere of Venus contains strong winds and is said to have a "super rotation" because the atmosphere (above a certain altitude) moves faster than what the ground does. No one can disagree with ...
1
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0answers
64 views

Has the weather been affected by the moons increasing distance from Earth? [closed]

The moon moves approximately 4cm away from Earth per year. Given that it affects Earth's weather, will this increasing distance already have had an impact on the weather (regardless of how negligible ...
6
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3answers
616 views

How can Falcon 9 first stage land vertical in a strong wind?

As I see it, Falcon 9 has to land on the barge in a vertical orientation and with no horizontal drift. It has fins that are ineffective at low speed. It has a rocket motor that can probably vector ...
20
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3answers
6k views

Why are rocket launches so sensitive to weather?

I've been following the upcoming launch of the Antares rocket to resupply the ISS (scheduled for today, July 13, 2014). This launch was originally scheduled for May, and has been rescheduled multiple ...
19
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2answers
6k views

Can a rocket be launched while it rains?

All videos of rocket launches I ever saw were performed in clear weather conditions. I also read many reports about launches which were delayed because of bad weather conditions. What are the ...
33
votes
2answers
6k views

What would it feel like to be in a Martian dust storm?

In a recent question, 'Could an EVA Suit meant for Mars be used for EVA on another celestial, or vice-versa?', there was some discussion in the comments about the effects of a dust storm on Mars ...
8
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1answer
343 views

What stage of development are meteorology models of Venus?

When the weatherman on TV says 'Rain', I make it a point not to take brolly with me. But jokes apart, meteorology here on Earth is developed enough to assist decision-making. This is demonstrated ...
10
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2answers
394 views

Around Venus in 8 days by Balloon?

The question Would a human colony on Venus be possible? received an answer showing how inhospitable the surface is. But combined with comments to the answer implies that a station in the upper ...
17
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2answers
6k views

How can Mars have dust storms with such a thin atmosphere?

Mars, as I understand, has a very thin atmosphere. However, it still has weather like this: What causes the thin atmosphere to move fast enough to cause such a monster wave of dust?
15
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1answer
2k views

What is the cause of Saturn's north pole persistent hexagon jet streams?

According to the article on the Cassini Solstice Mission website dating back to December 9, 2009: The six-sided shape remains a mystery. Scientists think the hexagon is a meandering jet stream at ...
11
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2answers
532 views

Do we have instruments that can measure the depth of storms like the Great Red Spot on Jupiter and the Great Dark Spot on Neptune?

I understand if technology isn't quite there yet. If it isn't, is there any research being developed along these lines? I'm trying to wrap my head around the composition of these planets, and the ...