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Nathan Williams

@bluebirdadventures.bsky.social

PhD Planetary Scientist & Applied Science Systems Engineer @NASA/JPL-Caltech. He/Him/His Personal account; all views are my own. I think I'm quite ready for another adventure! Join me, won't you?

470 Followers  |  251 Following  |  119 Posts  |  Joined: 24.12.2024
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Posts by Nathan Williams (@bluebirdadventures.bsky.social)

Both! For these field tests we were mostly focused on software navigation algorithms. We had to apply optical filters too, just not the same as we’d use on Mars since the Earth environment is brighter.

03.12.2025 20:46 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
A test drone flies over the rocky β€œMars Hill” in Death Valley National Park (under a special research permit).

Photo by Nathan Williams, 2025.

A test drone flies over the rocky β€œMars Hill” in Death Valley National Park (under a special research permit). Photo by Nathan Williams, 2025.

Short article is now out covering our field work in Death Valley National Park and the Mojave Desert earlier this summer! We’re testing new tech and software for future Mars helicopters and aerial vehicles. Photo by me.

www.nasa.gov/solar-system...

#planetaryscience #nasa #nps #photography

03.12.2025 05:03 β€” πŸ‘ 32    πŸ” 4    πŸ’¬ 3    πŸ“Œ 0
A mountain reflects off the still water of Emerald Lake
Banff, Canada
Β© 2025 Nathan Williams

A mountain reflects off the still water of Emerald Lake Banff, Canada Β© 2025 Nathan Williams

A good day for reflection

#photography #banff

27.09.2025 23:15 β€” πŸ‘ 42    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

Here specifically if you really want the deets: maps.app.goo.gl/KP3btPS2ci1Q...

23.09.2025 01:06 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Beautiful!

23.09.2025 01:03 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Diffuse lighting over a lush farm in a glacially carved valley at 10pm whilst the sun slowly sets.
Stryn, Norway
Β© 2025 Nathan Williams

Diffuse lighting over a lush farm in a glacially carved valley at 10pm whilst the sun slowly sets. Stryn, Norway Β© 2025 Nathan Williams

My last photo from Norway, just so beautiful and serene! I greatly look forward to returning someday and exploring more.

#photography #norway πŸ‡³πŸ‡΄

22.09.2025 22:55 β€” πŸ‘ 143    πŸ” 12    πŸ’¬ 3    πŸ“Œ 1
The start of the Gamle Strynefjellsvegen, a stunning old road running through tundra above Geiranger.
Stryn, Norway
Β© 2025 Nathan Williams

The start of the Gamle Strynefjellsvegen, a stunning old road running through tundra above Geiranger. Stryn, Norway Β© 2025 Nathan Williams

Take the road less traveled.

#photography #norway πŸ‡³πŸ‡΄

20.09.2025 23:40 β€” πŸ‘ 14    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Serene blue lake in a lush glacial valley surrounded by mountains.
Boverdalen, Norway 
Β© 2025 Nathan Williams

Serene blue lake in a lush glacial valley surrounded by mountains. Boverdalen, Norway Β© 2025 Nathan Williams

A moment of peace and serenity.

#photography #norway πŸ‡³πŸ‡΄

13.09.2025 22:39 β€” πŸ‘ 10    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Snow-capped mountains rise up above the living tundra, as ominous clouds linger overhead.
Boverdalen, Norway
Β© 2025 Nathan Williams

Snow-capped mountains rise up above the living tundra, as ominous clouds linger overhead. Boverdalen, Norway Β© 2025 Nathan Williams

β€œThe world is not in your books and maps. It's out there.”

#norway πŸ‡³πŸ‡΄ #landscape πŸ”οΈ #photography πŸ“·

06.09.2025 21:23 β€” πŸ‘ 16    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Meltwater from the thawing snowpack
Tindevegen, Norway
Β© 2025 Nathan Williams

Meltwater from the thawing snowpack Tindevegen, Norway Β© 2025 Nathan Williams

The thaw commences

02.09.2025 11:12 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Seasonal thawing of the tundra, with the snow pack parting ways to streams and mossy ground
Tindevegen, Norway
Β© 2025 Nathan Williams

Seasonal thawing of the tundra, with the snow pack parting ways to streams and mossy ground Tindevegen, Norway Β© 2025 Nathan Williams

Summer finally starting to thaw the snowpack, with runoff streaming across the tundra

01.09.2025 01:20 β€” πŸ‘ 24    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
Snow melts away to reveal the living tundra
Tindevegen, Norway
Β© 2025 Nathan Williams

Snow melts away to reveal the living tundra Tindevegen, Norway Β© 2025 Nathan Williams

Sitting at the snow line lingering into the summer

26.08.2025 01:14 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
A barren snow and ice covered landscape with a rocky mountain rising above 
Jotunheimen, Norway
Β© 2025 Nathan Williams

A barren snow and ice covered landscape with a rocky mountain rising above Jotunheimen, Norway Β© 2025 Nathan Williams

Jotunheimen: the mythical home of giants in ancient Norse lore. Even in summer, its rugged icy mountains feel almost otherworldly, vast and primal.
#photography #Norway πŸ‡³πŸ‡΄

20.08.2025 02:46 β€” πŸ‘ 16    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Snow lingers on mountains well into the summer, but begins to melt off the rocky landscapes
Norway
Β© 2025 Nathan Williams

Snow lingers on mountains well into the summer, but begins to melt off the rocky landscapes Norway Β© 2025 Nathan Williams

Up up up in elevation, the cold maintains its grasp late into summer, yet here still eventually gives way and thaws.

18.08.2025 04:05 β€” πŸ‘ 6    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
A very straight road continuing into the distance towards mountains
Norway
Β© 2025 Nathan Williams

A very straight road continuing into the distance towards mountains Norway Β© 2025 Nathan Williams

Now far ahead the road has gone,
And I must follow if I can

15.08.2025 22:56 β€” πŸ‘ 7    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Two lambs overlooking the steep valley walls of eastern Sognefjord, with snow-capped mountains in the distance
Tindevegen, Norway
Β© 2025 Nathan Williams

Two lambs overlooking the steep valley walls of eastern Sognefjord, with snow-capped mountains in the distance Tindevegen, Norway Β© 2025 Nathan Williams

Feeling a little sheepish in a big world
#photography

14.08.2025 01:50 β€” πŸ‘ 17    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
Sognefjord, Norway
Β© 2025 Nathan Williams

Sognefjord, Norway Β© 2025 Nathan Williams

Pining for the fjords #photography

12.08.2025 02:15 β€” πŸ‘ 22    πŸ” 5    πŸ’¬ 1    πŸ“Œ 1
An aptly-named Bluethroat
Norway
Β© 2025 Nathan Williams

An aptly-named Bluethroat Norway Β© 2025 Nathan Williams

What a gem of a bird! This Bluethroat was as curious and friendly of me as I was for it. πŸͺΆ #birds #photography

09.08.2025 17:51 β€” πŸ‘ 52    πŸ” 5    πŸ’¬ 1    πŸ“Œ 1
Recently hatched baby birds in a nest made of sticks and moss, unknown species (possibly Fieldfare?)
Norway
Β© 2025 Nathan Williams

Recently hatched baby birds in a nest made of sticks and moss, unknown species (possibly Fieldfare?) Norway Β© 2025 Nathan Williams

Feeling hungry, with room to grow πŸͺΆ #birds

07.08.2025 21:55 β€” πŸ‘ 10    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

HQ sent a high priority email asking for feedback β€œas we conclude [MSR]”. However, we have not been given any direction to actually closeout MSR work.
AFAIK this is notional posturing by HQ to plan to the FY26 PBR until/unless a congressional appropriation bill is passed that says otherwise.

07.08.2025 02:33 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Eurasian Nuthatch
Oslo, Norway
Β© 2025 Nathan Williams

Eurasian Nuthatch Oslo, Norway Β© 2025 Nathan Williams

Strike a pose! #birds πŸͺΆ #photography

07.08.2025 00:40 β€” πŸ‘ 22    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Rocky stream with small waterfalls
Norway
Β© 2025 Nathan Williams

Rocky stream with small waterfalls Norway Β© 2025 Nathan Williams

Take a deep breath and let the stress gently flow away down the stream

05.08.2025 23:50 β€” πŸ‘ 11    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Borgund Stave Church, Norway
Β© 2025 Nathan Williams

Borgund Stave Church, Norway Β© 2025 Nathan Williams

Highlight of ancient Norse stylized dragon head wood carvings adorning gables on the roof.
Borgund Stave Church, Norway
Β© 2025 Nathan Williams

Highlight of ancient Norse stylized dragon head wood carvings adorning gables on the roof. Borgund Stave Church, Norway Β© 2025 Nathan Williams

Highlight of ancient Norse stylized dragon head wood carvings adorning gables on the roof.
Borgund Stave Church, Norway
Β© 2025 Nathan Williams

Highlight of ancient Norse stylized dragon head wood carvings adorning gables on the roof. Borgund Stave Church, Norway Β© 2025 Nathan Williams

Looking out the covered passageway encircling the church, with the black tar protecting the exterior wood from the elements.
Borgund Stave Church, Norway
Β© 2025 Nathan Williams

Looking out the covered passageway encircling the church, with the black tar protecting the exterior wood from the elements. Borgund Stave Church, Norway Β© 2025 Nathan Williams

Hidden in a forested valley carved by glaciers in prehistoric times, the village of Borgund πŸ‡³πŸ‡΄ retains its epic stave church built circa 1200 C.E. Wooden carvings of stylized dragon heads adorn the gables on the roof, and the wood is darkened by a protective tar.

05.08.2025 02:46 β€” πŸ‘ 8    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
Exterior of the Gol Stave Church
Oslo, Norway
Β© 2025 Nathan Williams

Exterior of the Gol Stave Church Oslo, Norway Β© 2025 Nathan Williams

Interior of the Gol Stave Church
Oslo, Norway
Β© 2025 Nathan Williams

Interior of the Gol Stave Church Oslo, Norway Β© 2025 Nathan Williams

Wood carvings on the Gol Stave Church
Oslo, Norway
Β© 2025 Nathan Williams

Wood carvings on the Gol Stave Church Oslo, Norway Β© 2025 Nathan Williams

A stave pillar inside the Gol Stave Church
Oslo, Norway
Β© 2025 Nathan Williams

A stave pillar inside the Gol Stave Church Oslo, Norway Β© 2025 Nathan Williams

Often is history obscured, but sometimes it’s boldly preserved and allows you to step back in time to the ancient past.

02.08.2025 00:09 β€” πŸ‘ 8    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

More would needed a bigger entry vehicle, but 6 can fit in and reuse the same size / design as Perseverance’s backshell, parachute and heat shield without needing to do a complete redesign so that’s easiest/cheapest/greatest heritage.

25.07.2025 17:07 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Plus we know we can land these helis autonomously with good reliability; Ingenuity did it safely 71 times in a row despite more primitive capabilities. So the likelihood that all 6 upgraded helis might fail is extremely low.

25.07.2025 16:59 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

The helis are also easily maneuverable and have active hazard avoidance. Adding hazard avoidance to a big cumbersome lander would be very complex, more mass, and more expensive. And a lander would be a single point failure, whereas mid-air deploy of 6 helis gives a lot of redundancy by itself.

25.07.2025 16:56 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Yeah, adding a lander would basically be a whole extra spacecraft and would need to be pretty big, heavy, and complex to carry 6 helis to the surface. And since the payload (helis) can fly themselves, adding a lander would just be kinda redundant.

25.07.2025 16:21 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

These helis would have different radios capable of comms straight to orbital assets (MRO, TGO, MVN, etc), without needing another ground base station like Ingenuity x Perseverance.

25.07.2025 01:23 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Yes, within the past few months and I’ve stopped using it as a result

24.07.2025 20:30 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0