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Posts by Andrew Watson

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Fully documented source code for Elite on the 6502 (BBC Micro, Acorn Electron, Commodore 64, Apple II, NES) Fully documented source code for Elite on the 6502 (BBC Micro, Acorn Electron, Commodore 64, Apple II, NES), with more than 100 deep dive articles explaining how every aspect of this iconic game works...

Someone has documented the entire source code for Elite and explained how every line works, plus included deep dives into various functionality. Covers all main versions like BBC Micro, Commodore 64 and NES. You can also play online in browser. elite.bbcelite.com

3 days ago 885 211 29 17
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A bit of a different take on the amazing Artemis II launch footage.

Here I stitched clips from the four Solar Array Wing Cameras to make this panoramic video.

This is during the later part of the Core Stage burn until MECO and stage separation, sped up to 10x. πŸ”­πŸ§ͺ #Artemis

1 week ago 1105 366 16 20
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View of Northern Mexico and Sonoran Desert as seen from the Gemini 3 spacecraft while in orbit.
#OTD
March 23, 1965

contactlight.de

4 weeks ago 9 4 0 0
A spinosaur, with river water dripping off its face, and a small turtle balanced precariously upon its nose

A spinosaur, with river water dripping off its face, and a small turtle balanced precariously upon its nose

What seemed at first to be a piece of driftwood surfaced and turned out to be a frightening surprise for this cretaceous turtle - though it has little to fear, as this spinosaur is interested in larger game.

Timed just wrong to have been the new Spinosaurus mirabilis. #sciart #drawing #paleoart

2 months ago 7 0 0 0
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🚨New dinosaur! The latest salvo in the Spinosaurus saga.

A Spinosaurus looking like Elvis, with an outrageous bony head crest. Discovered in the Sahara by my undergrad mentor Paul Sereno & his team.

Super cool! But I'm sure nobody on the internet will care about it... πŸ˜‰

2 months ago 140 32 4 3
A Sinosauropteryx, a small feathered dinosaur, runs past a fallen tree branch and focuses intently on something offscreen above him.

A Sinosauropteryx, a small feathered dinosaur, runs past a fallen tree branch and focuses intently on something offscreen above him.

Sinosauropteryx, a small feathered theropod from the Early Cretaceous in what is now northeastern China. This animal is covered in primitive fiber-like feathers, and was the first dinosaur outside the Avialae to be found with evidence of feathering. #paleoart #sciart #pencil #graphite

2 months ago 7 2 0 0
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Maybe a bit late for web timing, but ehy, NEW PAPER ON #fossilfriday!!!

I am proud to present you Haolong dongi gen. nov. sp. nov., a new hadrosauroid from the Early Cretaceous of China!
The specimen, almost complete, is a juvenile iguanodontian from the Yixian Formation of the Barremian (125 Mya).

2 months ago 99 46 3 3
Drawing of an Allosaurus, in brown and tan/white patterns, orange horns and a dark green background with two branches of yellow ginkgo leaves.

Drawing of an Allosaurus, in brown and tan/white patterns, orange horns and a dark green background with two branches of yellow ginkgo leaves.

Allosaurus and some ginkgo branches🍁✨

2 years ago 76 24 1 0
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#TIME cover story: #ArtemisII is poised for the first lunar mission since 1972

#Space

time.com/7346146/arte...

2 months ago 3 3 0 0
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Nice Artemis II rollout view with ML-2 in the background

Source: Reid Wiseman
#ArtemisII

3 months ago 34 5 0 0
A close up of the SLS Core Stage showing one of the new "Strakes" mounted to it. The booster can be seen to the right of the frame with the attachment point partially obscured by the fin.

A close up of the SLS Core Stage showing one of the new "Strakes" mounted to it. The booster can be seen to the right of the frame with the attachment point partially obscured by the fin.

A good look from Boeing today of the new strakes adorning the SLS Core Stage. These fins were added after Artemis I experienced unexpected airflow induced vibrations at the forward attachment point for the SRBs.

These smooth out the airflow around the point and reduce vibrations during launch.

3 months ago 26 4 0 1
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'Tis the season for some festive science songs.

If you've ever wanted to hear someone sing about a dimunitive tyranosaur then now is your chance

4 months ago 385 223 18 47
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Flyby
16 x 12 in, oil on panel
This painting also debuted, and sold, at the IX Art Show last month. Prints Available: robrey.storenvy.com

The first step to landing on a new world is getting a closer look.

4 months ago 50 9 1 0
The Orion Capsule on its transport outside of the Launch Abort System Facility in Florida.

The Orion Capsule on its transport outside of the Launch Abort System Facility in Florida.

A close up view showing the Orion capsule atop its transporter with a "LET'S GO" banner signed by the Artemis Program's workforce

A close up view showing the Orion capsule atop its transporter with a "LET'S GO" banner signed by the Artemis Program's workforce

Acting NASA Administrator Sean Duffy shared some photos this morning of Orion capsule 𝘐𝘯𝘡𝘦𝘨𝘳π˜ͺ𝘡𝘺 rolling to the Vehicle Assembly Building for stacking atop the Artemis II SLS rocket.

This will be the first spacecraft since Apollo 17 to carry humans to the Moon.

6 months ago 22 9 1 2
Illustration of the Artemis II Orion Spacecraft, Integrity, in blue at the center of a patch-style illustration. Surrounding Orion is a circle with the word β€œIntegrity” filling the space both above and below the spacecraft within the circle.

Illustration of the Artemis II Orion Spacecraft, Integrity, in blue at the center of a patch-style illustration. Surrounding Orion is a circle with the word β€œIntegrity” filling the space both above and below the spacecraft within the circle.

#SpacetoberChallenge Day 14: Spacecraft

Featuring, Orion. More specifically the Artemis II Orion Spacecraft, which the crew has named, Integrity.

#sciart #spaceart #Artemis #space

6 months ago 21 4 1 0
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Various Outer Wilds Illustrations made for a friends Birthday πŸ’š
Absolutely great game. Really advice checking it out!

#outerwilds #outerwildsart

6 months ago 359 55 5 1
Pair of fossilized dinosaur teeth of a Tyrannosaurus and Albertosaurus showing both showing the tip missing.

Pair of fossilized dinosaur teeth of a Tyrannosaurus and Albertosaurus showing both showing the tip missing.

Today is the 120th anniversary of the description of #Tyrannosaurus rex and #Albertosaurus sarcophagus in 1905 by Henry Fairfield Osborn, the two species that would define the clade, Tyrannosauridae. A pair of dinosaur teeth, albeit very worn, belonging to these two famous species. πŸ§ͺ

6 months ago 21 5 0 0
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NASA targeting early February for Artemis II mission to the Moon β€œThere is a desire for us to be the first to return to the surface of the Moon.”…
6 months ago 26 14 3 9
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Video

59 years ago today...

For the first time, the USS Enterprise appeared on the screen. It was the beginning of a long, long journey: Star Trek. πŸ––

7 months ago 1558 400 42 28
A huge starship, with a pair of ring-shaped habitation structures supported by a central spire. A set of engines and propellant tanks is fitted to one end. Text printed on the rings identifies the vessel as the ISGV Valeria, and each ring has a number of landmasses and oceans on its inner surface. The vehicle is in orbit of a desert planet with enough blue in its atmosphere to indicate oxygen.

A huge starship, with a pair of ring-shaped habitation structures supported by a central spire. A set of engines and propellant tanks is fitted to one end. Text printed on the rings identifies the vessel as the ISGV Valeria, and each ring has a number of landmasses and oceans on its inner surface. The vehicle is in orbit of a desert planet with enough blue in its atmosphere to indicate oxygen.

Decided to try some digital art! Some experiments with light and shadow layers eventually turned into the ISGV Valeria, a generation ship with a subset of some terran ecosystems transplanted aboard.

7 months ago 2 0 0 0
A low quality Tyrannosaurus rex skull after preparation in a giant sandstone and plaster field jacket

A low quality Tyrannosaurus rex skull after preparation in a giant sandstone and plaster field jacket

I swear, every museum has one of these nowadays.

Backstage at DMNS is always a treat

8 months ago 39 4 4 0
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Embraer E175LR (N258NN) vs 3rd quarter Moon, seen Saturday morning over the Space Coast of Florida.

Bathed in morning sunlight, American Eagle flight 4251 was traveling from Charleston (CHS) to Miami (MIA) at 30k ft & 461 kts.

(πŸ“·: me, flight data by @flightradar24.com)

#avgeek #aviation

8 months ago 72 13 3 0

Post your lock screen!

Sure, I'll hop on this trend. This might be my favorite pic from the whole Apollo program - Apollo 9 EVA

8 months ago 1 0 0 0
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Presenting the BRAND-NEW season - @dimension20.bsky.social On a Bus! 🚌

DM'd by Katie Marovitch, and as players: Aabria Iyengar, Brennan Lee Mulligan, Jasmine Bhullar, and Mark Mercer!

9 months ago 8434 2020 557 336
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Happy #FossilFriday! This is Maiasaura peeblesorum, the state fossil of Montana. Studies of this duck-billed dinosaur provided the first evidence that some dinosaurs cared for their babies. Come see Maiasaura bones, eggs, babies and more in Cretaceous Crossroads!
Mural by artist Julius Csotonyi

9 months ago 25 12 0 0
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The Rhenopyrgus family of Edrioasteroids are really strange.

This is Rhenopyrgus viviani from the Silurian Jupiter Fm. of Quebec. It was named after my friend and I donated a specimen for the 2020 paper. There are also some ostracods and tentaculites on the plate.

#FossilFriday

9 months ago 11 6 0 0
A pencil drawing of the head and neck of a tyrannosaur. Its mouth is slightly open, and some light feathering is present at the top of its head and along its throat.

A pencil drawing of the head and neck of a tyrannosaur. Its mouth is slightly open, and some light feathering is present at the top of its head and along its throat.

A young tyrannosaur, accidentally timed well for the discovery of Khankhuuluu. Haven't done much in the way of paleoart before, and I really enjoyed this little project! Graphite on paper. #sciart #paleoart

10 months ago 12 1 1 0
Allosaurus anterior caudal with a partially healed wound congruent with what a Stegosaurus tail-spike puncture would be expected to cause. Centimeter ruler for scale.

Allosaurus anterior caudal with a partially healed wound congruent with what a Stegosaurus tail-spike puncture would be expected to cause. Centimeter ruler for scale.

Behold! The punctured vertebrae #Dinosaur #Fossil of an #Allosaurus caused by the #Thagomizer of a #Stegosaurus. The spikes (seen to illustrate fit) were used for defense. The thagomized allosaurus survived as evidenced by healed bone. #Science #PaleoSky πŸ§ͺ πŸ¦• See: www.researchgate.net/publication/...

10 months ago 37 5 4 0
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phantom class fighter, inspired by N1 star fighter, commissioned by Stu1701

phantom class fighter, inspired by N1 star fighter, commissioned by Stu1701

White Dwarf class reconnaissance vessel, inspired by U-wing

White Dwarf class reconnaissance vessel, inspired by U-wing

Class Y courier, inspired by Y-wing starfighter, commissioned by Stu1701

Class Y courier, inspired by Y-wing starfighter, commissioned by Stu1701

sw inspired trek ships so far!

1 year ago 1034 259 38 14
A fossil of a fragment of Baragwanathia longifolia, an early lycopod

A fossil of a fragment of Baragwanathia longifolia, an early lycopod

Baragwanathia longifolia, a confusing early clubmoss from around 425 million years ago.

Described as Late Silurian (the dating is still controversial), its features are surprising for such an early plant.

This specimen is from Limestone Road, nr Yea, Victoria, Australia

#FossilFriday
πŸŒ²βš’πŸŒπŸ§ͺπŸ”¬πŸŒ±

11 months ago 45 15 2 0