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Posts by John

Saltburn beach as seen from the local pier. Lots of flat sand and blue sky and a line of rugged small cliffs spread along the coastline with houses above and a promenade below

Saltburn beach as seen from the local pier. Lots of flat sand and blue sky and a line of rugged small cliffs spread along the coastline with houses above and a promenade below

#BlueSkyArtShow theme this weekend is #Edge so this view from the pier shows the edge of the North Yorkshire coastline as it meets the North Sea at Saltburn. #photography #coastline

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Why birds were the only dinosaurs to survive mass extinction Scientists finally understand why birds were the only dinosaurs to pull through the end-Cretaceous mass extinction

From the new issue: scientists finally understand why birds were the only dinosaurs to pull through the end-Cretaceous mass extinction

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This "Fuels for Spacecraft" infographic explains how rockets launch and move through space. The left side covers "Getting Off the Ground," detailing solid propellants like ammonium perchlorate and aluminum powder used in boosters, and liquid propellants like liquid oxygen and hydrogen used in main engines. The right side explores "Propulsion in Space," highlighting chemical propulsion via hydrazine decomposition, electric ion propulsion using xenon, and solar sails.

This "Fuels for Spacecraft" infographic explains how rockets launch and move through space. The left side covers "Getting Off the Ground," detailing solid propellants like ammonium perchlorate and aluminum powder used in boosters, and liquid propellants like liquid oxygen and hydrogen used in main engines. The right side explores "Propulsion in Space," highlighting chemical propulsion via hydrazine decomposition, electric ion propulsion using xenon, and solar sails.

With #Artemis II blasting off to the Moon, here's a look at the different fuels used to get rockets off of the ground in this edition of #PeriodicGraphics in @cenmag.bsky.social: cen.acs.org/physical-che...

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Recovery crew opening the hatch and welcoming the Artemis II crew home after a nearly 700,000-mile journey.

Video: Reid Wiseman

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Issue 77 is out – it's a very special edition! 🎉
Every article comes directly from one of our funders: eight of Europe’s largest research facilities! Running through all articles like a golden thread is one theme: light.

Dive right in: scienceinschool.org/issue/issue-...

#EduSky

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Picture of the century. 😍

📷 credit: Science Tube

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Plain amber wall with black roof below which is a sculpture made of metal  and cogs showing a representation of explorer James Cook bursting through the walls of the museum on a bike

Plain amber wall with black roof below which is a sculpture made of metal and cogs showing a representation of explorer James Cook bursting through the walls of the museum on a bike

New cycle route through Stewart Park Middlesbrough might need a bit of work!

Actually it’s a sculpture by artist Keith Peacock representing explorer James Cook bursting out of the museum and commemorating the Tour de Yorkshire cycling event in 2016. #BlueSkyArtShow #New #photography #cycling

1 week ago 7 0 0 0
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Beige coloured sand on the beach at Redcar North Yorkshire with variety of footprints dog, horse, human

Beige coloured sand on the beach at Redcar North Yorkshire with variety of footprints dog, horse, human

New footprints in the sand at Redcar on the east coast of northern England #BlueSkyArtShow #New #photography

1 week ago 5 0 0 0
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Artemis II Multimedia: Crew Photos, Videos and Mission Highlights Explore Artemis II multimedia: astronaut photos, training videos, and mission visuals from NASA’s first crewed lunar flyby in 50 years.

☑️ Ground Systems
☑️ Orion Spacecraft
☑️ SLS Rocket
☑️ Mission Science
☑️ Flight Day Highlights
☑️ Astronauts
☑️ Launch
☑️ Journey to the Moon
☑️ Lunar Flyby
☑️ Return to Earth
☑️ Splashdown and Return

All the galleries:

www.nasa.gov/artemis-ii-m...

#Artemis 🔭🧪

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NASA astronaut Victor Glover, Artemis II pilot, left, and NASA astronaut Christina Koch, Artemis II mission specialist are seen sitting on a Navy MH-60 Seahawk from Helicopter Sea Combat Squadron (HSC) 23 on the flight deck of USS John P. Murtha after they and fellow crewmates CSA (Canadian Space Agency) astronaut Jeremy Hansen, Artemis II mission specialist, and NASA astronaut Reid Wiseman, Artemis II commander, were extracted from their Orion spacecraft after splashdown, Friday, April 10, 2026, in the Pacific Ocean off the coast of California. NASA’s Artemis II mission took the quartet on a nearly 10-day journey around the Moon and back to Earth. Following a splashdown at 5:07 p.m. PDT (8:07 p.m. EDT), NASA, U.S. Navy, and U.S. Air Force teams are working to bring the Orion spacecraft aboard the recovery ship.
Image Credit: NASA/Bill Ingalls

NASA astronaut Victor Glover, Artemis II pilot, left, and NASA astronaut Christina Koch, Artemis II mission specialist are seen sitting on a Navy MH-60 Seahawk from Helicopter Sea Combat Squadron (HSC) 23 on the flight deck of USS John P. Murtha after they and fellow crewmates CSA (Canadian Space Agency) astronaut Jeremy Hansen, Artemis II mission specialist, and NASA astronaut Reid Wiseman, Artemis II commander, were extracted from their Orion spacecraft after splashdown, Friday, April 10, 2026, in the Pacific Ocean off the coast of California. NASA’s Artemis II mission took the quartet on a nearly 10-day journey around the Moon and back to Earth. Following a splashdown at 5:07 p.m. PDT (8:07 p.m. EDT), NASA, U.S. Navy, and U.S. Air Force teams are working to bring the Orion spacecraft aboard the recovery ship. Image Credit: NASA/Bill Ingalls

NASA astronaut Victor Glover, Artemis II pilot, left, and NASA astronaut Christina Koch, Artemis II mission specialist are seen sitting on a Navy MH-60 Seahawk from Helicopter Sea Combat Squadron (HSC) 23 on the flight deck of USS John P. Murtha after they and fellow crewmates CSA (Canadian Space Agency) astronaut Jeremy Hansen, Artemis II mission specialist, and NASA astronaut Reid Wiseman, Artemis II commander, were extracted from their Orion spacecraft after splashdown, Friday, April 10, 2026, in the Pacific Ocean off the coast of California. NASA’s Artemis II mission took the quartet on a nearly 10-day journey around the Moon and back to Earth. Following a splashdown at 5:07 p.m. PDT (8:07 p.m. EDT), NASA, U.S. Navy, and U.S. Air Force teams are working to bring the Orion spacecraft aboard the recovery ship.
Image Credit: NASA/Bill Ingalls

NASA astronaut Victor Glover, Artemis II pilot, left, and NASA astronaut Christina Koch, Artemis II mission specialist are seen sitting on a Navy MH-60 Seahawk from Helicopter Sea Combat Squadron (HSC) 23 on the flight deck of USS John P. Murtha after they and fellow crewmates CSA (Canadian Space Agency) astronaut Jeremy Hansen, Artemis II mission specialist, and NASA astronaut Reid Wiseman, Artemis II commander, were extracted from their Orion spacecraft after splashdown, Friday, April 10, 2026, in the Pacific Ocean off the coast of California. NASA’s Artemis II mission took the quartet on a nearly 10-day journey around the Moon and back to Earth. Following a splashdown at 5:07 p.m. PDT (8:07 p.m. EDT), NASA, U.S. Navy, and U.S. Air Force teams are working to bring the Orion spacecraft aboard the recovery ship. Image Credit: NASA/Bill Ingalls

NASA astronaut Victor Glover, Artemis II pilot, left, and NASA astronaut Christina Koch, Artemis II mission specialist are seen sitting on a Navy MH-60 Seahawk from Helicopter Sea Combat Squadron (HSC) 23 on the flight deck of USS John P. Murtha after they and fellow crewmates CSA (Canadian Space Agency) astronaut Jeremy Hansen, Artemis II mission specialist, and NASA astronaut Reid Wiseman, Artemis II commander, were extracted from their Orion spacecraft after splashdown, Friday, April 10, 2026, in the Pacific Ocean off the coast of California. NASA’s Artemis II mission took the quartet on a nearly 10-day journey around the Moon and back to Earth. Following a splashdown at 5:07 p.m. PDT (8:07 p.m. EDT), NASA, U.S. Navy, and U.S. Air Force teams are working to bring the Orion spacecraft aboard the recovery ship.
Image Credit: NASA/Bill Ingalls

NASA astronaut Victor Glover, Artemis II pilot, left, and NASA astronaut Christina Koch, Artemis II mission specialist are seen sitting on a Navy MH-60 Seahawk from Helicopter Sea Combat Squadron (HSC) 23 on the flight deck of USS John P. Murtha after they and fellow crewmates CSA (Canadian Space Agency) astronaut Jeremy Hansen, Artemis II mission specialist, and NASA astronaut Reid Wiseman, Artemis II commander, were extracted from their Orion spacecraft after splashdown, Friday, April 10, 2026, in the Pacific Ocean off the coast of California. NASA’s Artemis II mission took the quartet on a nearly 10-day journey around the Moon and back to Earth. Following a splashdown at 5:07 p.m. PDT (8:07 p.m. EDT), NASA, U.S. Navy, and U.S. Air Force teams are working to bring the Orion spacecraft aboard the recovery ship. Image Credit: NASA/Bill Ingalls

Happy astronauts back from the Moon

www.nasa.gov/gallery/arte...

#Artemis 🧪🔭

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Robin feeding young bird in garden. Grey pebbles  with old tree trunk and red cedar wooden fence

Robin feeding young bird in garden. Grey pebbles with old tree trunk and red cedar wooden fence

Robin feeding it’s fledgeling at 6:30 this morning. Bit more chill in North Yorkshire today after yesterday’s. balmy weather
#birds #photography #spring

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Red ladybird perched on a green fern. Green and brown leaves of other ferns in the background

Red ladybird perched on a green fern. Green and brown leaves of other ferns in the background

Bright and warm spring sunshine today . Spotted this Ladybird sunbathing on a fern #sunny #weather #photography

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Artemis II Tracker — Live Mission Control Real-time mission control dashboard tracking NASA's Artemis II crewed lunar flyby. Live telemetry, DSN comms, orbit visualization, and crew activities.

There's a nice #Artemis II mission tracker here: artemis.cdnspace.ca

LOTS of data about its current position, crew activities, and whether or not the toilet is currently "Go"

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Wet sand reflects the clouds and blue sky amid the sand dunes of Redcar beach North Yorkshire. A lone figure searches with a metal detector

Wet sand reflects the clouds and blue sky amid the sand dunes of Redcar beach North Yorkshire. A lone figure searches with a metal detector

A lone detectorist and a few dog walkers visit Redcar beach on this cold and very blustery Easter Sunday in North Yorkshire #photography #clouds #beach

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Map of the UK on which the BBC has superimposed its yellow and amber weather warnings . Looks like an Easter bunny

Map of the UK on which the BBC has superimposed its yellow and amber weather warnings . Looks like an Easter bunny

A novel Easter bunny from the BBC UK Weather warnings site yesterday #BBC #weather #Easter

2 weeks ago 2 0 0 0
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Night  picture with shadows of trees and fences with two lights in the dark sky. One is a streetlight and the other is the moon.

Night picture with shadows of trees and fences with two lights in the dark sky. One is a streetlight and the other is the moon.

Local Streetlight doing its best impersonation of the moon . #photography #moon #Artemis

2 weeks ago 15 0 0 0
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This planet — with all its troubles — is worth caring for.

That should be our single purpose, as a species: To be stewards of this magnificent world, ensuring it thrives long into the future.

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NASA's Artemis II Live Mission Coverage (Official Broadcast) YouTube video by NASA

I highly recommend putting this NASA #Artemis II mission livestream on and just leaving it playing as you go about your weekend. Live views of the spacecraft, occasional visualizations of the current config, views of the control room, space-ground radio audio. www.youtube.com/live/m3kR2KK...

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On the banks of the river Tees a giant sculpture. Temenos, Two giant rings connected by wire. The old Middlesbrough town hall clock in the background and the local college

On the banks of the river Tees a giant sculpture. Temenos, Two giant rings connected by wire. The old Middlesbrough town hall clock in the background and the local college

There are openings at either end of this giant Temenos sculpture erected in 2010 on the banks of the Tees next to the Riverside Stadium.
110 m wide and 50 m high it includes thousands of metres of wire and represents the industrial heritage of the Tees valley
#BlueSkyArtShow #Openings #photography

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Blast off for Artemis II! 🚀 This is the beginning of a 10-day mission, and it is notably the first time humans have visited the moon in half a century. Stay tuned to follow the astronauts on their journey here: www.scientificamerican.com/report/nasa-...

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LAUNCH! ARTEMIS II LAUNCHES WITH A CREW OF 4 TOWARDS THE MOON

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NASA logo

NASA logo

NASA's live feed on the Artemis launch is here, and it's just started broadcasting:
www.youtube.com/watch?v=Tf_U...

I don't anticipate much happening for a while - the launch is currently scheduled for 11:24pm UK time. But keep an eye on the feed and share the link.

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LIVE: Artemis II Launch Day Updates - NASA Live updates for launch of NASA's Artemis II test flight will be published on this page. NASA’s launch broadcast coverage is airing on NASA+, Amazon Prime,

If you'd like to follow along with the #Artemis II launch, NASA has a live blog here: www.nasa.gov/blogs/missio...
and you can watch the official broadcast on the NASA site here:
plus.nasa.gov/scheduled-vi...
or on YouTube here: www.youtube.com/live/Tf_UjBM...

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Foggy day in Stewart Park . Sun is dim in the grey sky with silhouettes of trees and green fields

Foggy day in Stewart Park . Sun is dim in the grey sky with silhouettes of trees and green fields

On this misty North Yorkshire day , even the sun seems to fade into the background
#photography #Background
#BlueSkyArtShow

3 weeks ago 22 0 0 0
Dark river Tees with trees and bushes along the right edge , blue sky on a spring day in North Yorkshire

Dark river Tees with trees and bushes along the right edge , blue sky on a spring day in North Yorkshire

No need for flood gates at Yarm wharf today, just a glorious view along the river Tees in the North Yorkshire spring sunshine
#photography #spring #river

3 weeks ago 10 0 0 0
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Small bird, a long tailed tit perched on the edge of a coconut shell in a garden next to a rose bush with garden fence and green bamboo  leaves

Small bird, a long tailed tit perched on the edge of a coconut shell in a garden next to a rose bush with garden fence and green bamboo leaves

Recent capture on the garden bird cam in Norrh Yorkshire UK was this long tailed tit enjoying the remnants of a coconut shell suet ball. #photography #birds

3 weeks ago 10 1 0 0
Trees laden with pink cherry blossom line the path to a local footbridge

Trees laden with pink cherry blossom line the path to a local footbridge

A walk to the local shops is looking very picturesque at the moment in Middlesbrough North Yorkshire #photography #blossoms #spring

3 weeks ago 8 1 1 0
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Google Has a Secret Reference Desk. Here's How to Use It. 40 Google features to find exactly what you need, the alternative search engines that do things Google won't, and the reference desk framework underneath all of it.

I know this has circulated with alacrity recently, so you may have already seen it, but if you haven't... WOW BOY HOWDY it's the most useful thing.

Thank you cardcatalogforlife.substack.com -- this is a very very very helpful public service:

cardcatalogforlife.substack.com/p/google-has...

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A bit of Saturday dog physics... have you ever wondered why dogs are such messy drinkers? They're actually using quite a clever mechanism to overcome a fundamental difficulty. (And cats, to no-one's surprise are a bit tidier) Yay for the ingenious physics in the natural world! 🐕🐾

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