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James Lucas

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@JamesLucasIT

10h •
26 tweets • 9 min read •

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The incomprehensible scale of Space 🧵

1. Perspective is everything. Feel small yet?

2. Earth from Mars

This photo from NASA’s Curiosity rover shows the Earth as seen from the surface of Mars, shining brighter than any star in the Martian night sky.

3. A visual representation of the size of Jupiter compared to Earth.

With a radius of 43,440.7 miles (69,911 kilometers), Jupiter is 11 times wider than Earth.

4. This is what our solar system moving through space looks like.

The Sun orbits the center of the Milky Way, carrying all the planets, asteroids and comets of our solar system, which moves at an average speed of 450,000 miles per hour (720,000 km/h).

5. One of the largest black holes ever discovered and our solar system.

TON 618 has a mass about 66 billion times that of the Sun.

6. This is an artistic rendition of how big Saturn would approximately look if it were at the same distance as the Moon.

7. The amazing scale of the Pillars of Creation

The Pillars of Creation is a photograph taken by the Hubble Space Telescope of interstellar gas and dust in the Eagle Nebula, located 6,500–7,000 light-years from Earth.

8. To add fuel to the fire... here’s the famous Pillars image overlaid on a wider view of the full nebula.

The second one shows the complete nebula, with the Pillars positioned just below the center.

9. What the Andromeda galaxy would look like from earth if it was a bit brighter

10. Incredible footage of Saturn rising from behind the Moon

Saturn's closest distance to Earth is about 1.2 billion km (746 million miles).

11. Saturn's hexagon compared to the US

For those who want to have an idea of how large Saturn’s “hexagon” storm is...

12. Professor Brian Cox explaining the size of the Universe

13. Mystic Mountain captured by Hubble in the Carina Nebula

This nebula, one of the largest diffuse nebulae in our skies, is located approximately 8,500 light-years from Earth.

14. The Earth compared to the Sun, and the Sun compared to other stars

15. Stephenson 2-18 VS Ton 618

16. This vertically oriented logarithmic map of the Universe spans nearly 20 orders of magnitude, taking us from planet Earth to the edge of the visible Universe.

Each large “mark” on the right side’s scale bar corresponds to an increase in distance scales by a factor of 10.

17. Temperatures across our Solar System

The temperature of a planet is strongly influenced by its distance from the Sun.

Earth, located about 150 million km from the Sun, has a habitable climate, while distant planets like Neptune, over 4.5 billion km away, are much colder.

18. A logarithmic chart of distances, showing Voyager, our Solar System, the Oort Cloud, and our nearest star: Proxima Centauri.

19. The James Webb Space Telescope has captured images of the four largest planets in our solar system: Jupiter, Saturn, Uranus, and Neptune.

Neptune, the fourth largest planet, is about four times wider than Earth with an equatorial diameter of about 30,775 miles.

20. How far away are Galaxies?

21. Solar System bodies to scale

22. Here’s how Saturn’s rings would look like if they were placed around Earth

23. A Neutron Star in comparison to the size of New York City

24. Looking up at the night sky, you can see thousands of stars and they’re just a fraction of the numerous stars in the universe

25. Olympus Mons, Latin for "Mount Olympus," is a massive shield volcano on Mars.

At about 2.5 times the elevation of Mount Everest, it is the tallest known mountain in the Solar System.

26. Pale Blue Dot is a photo of Earth taken by Voyager 1 in 1990 from about 6 billion kilometers (3.7 billion miles) away, as it was leaving our solar system.

As Carl Sagan put it:

"Look again at that dot. That's here. That's home. That's us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. The aggregate of our joy and suffering, thousands of confident religions, ideologies, and economic doctrines, every hunter and forager, every hero and coward, every creator and destroyer of civilization, every king and peasant, every young couple in love, every mother and father, hopeful child, inventor and explorer, every teacher of morals, every corrupt politician, every "superstar," every "supreme leader," every saint and sinner in the history of our species lived there – on a mote of dust suspended in a sunbeam.

The Earth is the only world known so far to harbor life. There is nowhere else, at least in the near future, to which our species could migrate. Visit, yes. Settle, not yet. Like it or not, for the moment the Earth is where we make our stand.

It has been said that astronomy is a humbling and character-building experience. There is perhaps no better demonstration of the folly of human conceits than this distant image of our tiny world. To me, it underscores our responsibility to deal more kindly with one another, and to preserve and cherish the pale blue dot, the only home we've ever known."

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More from @JamesLucasIT

James Lucas

@JamesLucasIT

Nov 22

The beauty of our planet - a thread🧵

1. Road to the Moon by Argiris Karamouzas

2. Once in a lifetime shot by Prasenjeet Yadav.

A green meteor lights up the sky over India.

3. Magical beyond belief

Read 27 tweets

James Lucas

@JamesLucasIT

Nov 21

Rare historical photos you've (probably) never seen before 🧵

1. A boy hearing sound for the first time, 1974

2. The last ever duel in France, 1967

The mayor of Marseille Gaston Defferre and politician René Ribière took part in the last ever duel in France, after Defferre yelled "Taisez-vous, abruti!" ("Shut up, stupid!") at Ribière following a dispute in the French National Assembly.

3. When Einstein met Chaplin in 1931, Einstein said, "What I admire about your art is its universality. You do not say a word, and yet the world understands you." Chaplin replied, "It's true. But your fame is even greater. The world admires you, when no one understands you."

Read 28 tweets

James Lucas

@JamesLucasIT

Nov 19

Cool maps you've (likely) never seen before 🧵

1. The Sahara desert was green 6000 years ago

2. Earth according to the Mercator projection compared to the true size of countries.

The traditional world map exaggerates polar regions and shrinks equatorial ones.

Greenland appears to be the same size as Africa, yet Africa's land mass is actually fourteen times larger.

3. Who Lived When?

The overlapping lives of historical figures: from 1200 AD to the present.

Read 27 tweets

James Lucas

@JamesLucasIT

Nov 18

Thread of interesting things you (probably) didn’t know 🧵

1. These "wavy walls" in England surprisingly use fewer bricks than straight ones. Originating in Ancient Egypt, their arch design provides sturdy support with just one layer, unlike straight walls that require two.

2. What babies do in the womb

3. In 1750 BC, a man named Nanni in Mesopotamia filed the first documented complaint on a clay tablet against merchant Ea-nasir for delivering the wrong copper and mistreating his servant.

Archaeologists found several complaints, exposing Ea-nasir's poor business practices.

Read 27 tweets

James Lucas

@JamesLucasIT

Nov 17

Similarities between the human body and nature 🧵

1. Lungs and tree branches

2. A tree stump and a human fingerprint

3. The way the veins of the leaf align on the creases of the hand

Read 23 tweets

James Lucas

@JamesLucasIT

Nov 15

Have you ever wondered what the world’s most iconic cities looked like centuries ago?

This thread will take you back in time 🧵

1. Milan, Italy (1819)

2. New York City, USA (1875)

This lithograph by Currier & Ives captures the chaos of nineteenth-century NYC, focusing on the busy intersection of Broadway and Fulton Street, with traffic-laden streets and crowded sidewalks.

3. The Colosseum in Rome, Italy, by Vanvitelli (1700) and by Giovanni Maldura (1813).

Read 21 tweets

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