Gravity is such a constant it's easy to forget how much it shapes our experience. Randall Munroe, creator of the webcomic XKCD took this as a challenge. With a straightforward illustration, he compares the relative “depth” of various solar system gravity wells. Each well is drawn in such a way that it represents the relative amount of energy it would take to escape from that planet or celestial body's gravitational pull.

Gravity is such a constant it's easy to forget how much it shapes our experience. Randall Munroe, creator of the webcomic XKCD took this as a challenge. With a straightforward illustration, he compares the relative “depth” of various solar system gravity wells. Each well is drawn in such a way that it represents the relative amount of energy it would take to escape from that planet or celestial body's gravitational pull.

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The Oberth Effect  - Kerbal Science (KSP)

The Oberth Effect - Kerbal Science (KSP)

Delta-v budget - Wikipedia, the free encyclopedia - Delta-v needed for various orbital manoeuvers using conventional rockets.[7] See:[10][11] Red arrows show where optional aerobraking can be performed in that particular direction, black numbers give delta-v in km/s that apply in either direction. Lower-delta-v transfers than shown can often be achieved, but involve rare transfer windows or take significantly longer, see: fuzzy orbital transfers. Electric propulsion vehicles going from Mars…

Delta-v budget - Wikipedia, the free encyclopedia - Delta-v needed for various orbital manoeuvers using conventional rockets.[7] See:[10][11] Red arrows show where optional aerobraking can be performed in that particular direction, black numbers give delta-v in km/s that apply in either direction. Lower-delta-v transfers than shown can often be achieved, but involve rare transfer windows or take significantly longer, see: fuzzy orbital transfers. Electric propulsion vehicles going from Mars…

The Moons of the Solar System A diagram I made for Data Design's April edition. :) The Moons of the Solar System.

The Moons of the Solar System A diagram I made for Data Design's April edition. :) The Moons of the Solar System.

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Stop for a moment and ponder just how amazing it is that Sperm Whales dive as deep as they do and we all live on a tiny shell covering the planet.  And we think we are so important...

Stop for a moment and ponder just how amazing it is that Sperm Whales dive as deep as they do and we all live on a tiny shell covering the planet. And we think we are so important...

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Humanity's 29 active space missions, in 1 helpful infographic - THE WEEK #Space, #Mission, #Science

Humanity's 29 active space missions, in 1 helpful infographic - THE WEEK #Space, #Mission, #Science

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Our solar system to scale from the sun to the most recently discovered dwarf planet Eris in astronomical units. Including the distance of the farthest man made object from Earth.

Our solar system to scale from the sun to the most recently discovered dwarf planet Eris in astronomical units. Including the distance of the farthest man made object from Earth.

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Play with our interactive graphic to work out how many intelligent civilizations there could be in our universe.

Play with our interactive graphic to work out how many intelligent civilizations there could be in our universe.

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