When I was in high school, the United States would regularly spend space shuttles into orbit to help build this new thing: the International Space Station (ISS). In the aftermath of the Cold War, the nations of the world joined together to commit to building an orbital space station.
There was of course a time before the ISS, and I can recall many jokes being made about Mir, the Soviet then Russian space station. And before Mir there were other, though none as long-lasting. But I digress, we’re here today because recently Canadian astronaut Chris Hadfield tweeted a graphic made by Peter Batenburg that visually captures the history of the International Space Station.
I think my favourite element is the graphical representation of the expansion of the ISS in terms of its volume. I’ve seen similar sort of graphics showing the addition of modules and new components, but I can’t recall seeing the amount of space where people can live and work being captured.
But really, the whole piece is worthy of sitting down and enjoying. After all the ISS is only about 22 years old. But there are questions of how much longer it will remain in orbit. I’m not aware of any concrete plans to fund it beyond 2030 nor any plans for an eventual replacement.
We can only hope that the ISS and its successor remain an area that fosters international cooperation for the next thirty years.
Perseverance landed on Mars on 18 February, almost a month ago. The video and photography the rover has already sent back has been stunning. We all know she is the most capable rover yet landed on the Red Planet, but what we all want to know is how cute is Perseverance compared to her predecessors?
Early tomorrow morning, weather permitting, NASA’s Perseverance rover will blast off from Cape Canaveral on a six-plus month trip to Mars. There, hopefully it will land successfully and join all the rovers that have come before.
And so this piece from the New York Times feels appropriate. It’s a great illustration of all the spacecraft we have sent into space, including the active and inactive, with some notable exceptions.
I really like how it pays attention not just to the planets and their satellites (like the Moon), but also the comets, asteroids, and even the Lagrange points. And it does this all with small illustrations of the spacecraft.
In science news, we turn to graphics about planets and things. Specifically we are talking about exoplanets, i.e. planets that exist outside our solar system. Keep in mind that we have only been able to detect exoplanets since the 1990s. Prior to then, how rare was our system with all our planets? It could have been very rare. Now we know, probably not so much.
But, in all of that discovery, we are missing entire types of planets. This article published by Forbes does a nice job explaining why. But one of the key types of planets that we have been unable to discover heretofore have been: intermediately distant, giant planets. Think the Jupiters and Saturns of our system. Prior to now we could detect massive Jupiter-like planets orbiting super near to their distant stars. Or, we could detect super massive planets orbiting very far away. The in-betweeners? Not so much.
The above screenshot does a good job of showing where new detection methods have allowed scientists to begin to fill in the gaps. It shows how there is an enormous gap between what we have discovered and how they have been discovered. And the article does a nice job explaining how the science works in that only now with our longer periods of observation will help resolve certain issues.
From a design standpoint, this isn’t a super complicated graphic. It does rely upon a logarithmic scale, which isn’t common in non-scientific or academic papers. But this graphic comes from that environment, so it makes a lot of sense. The article is full of graphics from third-party sources, but I found this the most informative because of that very gap it highlights and how the new work (the stars) begin to fill it in.
Credit for the screenshotted piece goes to E. L. Rickman et al.
Last week we looked at the amazing news that astronomers had finally photographed a black hole. Or, technically, the shadow of a black hole since the black hole itself cannot be seen. I want to return to that news, because it’s awesome. And because xkcd published a piece that annotated the image to show the size of things by comparison.
I had mentioned that it was a supermassive black hole, some of the biggest of the bigs. And M87 is a beast.
On Sunday night I went to see the English rock band Muse perform here in Philadelphia. The concert was to support their latest album, but of course they played Starlight, a song which gave us its respective album’s title: Blackholes and Revelations.
Then on Wednesday, scientists announced that for the very first time, we have actually been able to take a photograph of a blackhole. This one is a supermassive black hole at the heart of the M87 galaxy, some 500 million trillion kilometres distant.
The bright light, or ring of fire, is the heated gas before falling beneath the event horizon, which here is the black disk. Beyond that point, the gravitational force is so strong that not even light can escape. And of course without light escaping to be seen, a black hole cannot be directly imaged. Instead, we have to look for its accretion disc.
It’s just cool.
Credit for the piece goes to the Event Horizon Telescope Collaboration.
Last summer NASA’s Martian exploration rover Opportunity went dark as its solar panels, needed to power the golf-cart sized explorer, were covered in dust from a planet-wide dust storm. Everyone hoped that over the following months the light Martian winds and dust devils would wipe clean the dust from the solar panels and the rover could recharge its batteries, turn on its heaters, and resume contact with Earth. It hasn’t. Consequently, on Wednesday NASA called Opportunity’s mission complete. And thanks to xkcd we have a proper little farewell.
One of the really neat things about space exploration has been the New Horizons probe that raced past Pluto, giving us the image of the now famous heart shape on the dwarf planet. But as it raced past a Kuiper Belt object named Ultima Thule on New Year’s, we received some tantalising first images of a snowman in space. Basically, two spheroid bodies fused together like a snowman or a peanut.
Except it’s not.
This is a fascinating graphic produced by the science research teams that show how the latest downloaded photographs from New Horizons—it will take many more months for the full set—show Ultima Thule is not very snowman-like in its shape. Instead, it is far flatter and more, in their words, shaped like a dented walnut and a pancake.
The article has some additional material that show how that spin axis changes the view. They are short videos, but if you are interested in space things, it is neat to see. We are accustomed to seeing spherical objects in orbit around the sun. Not pancakes.
Credit for the piece goes to NASA, Johns Hopkins University Applied Physics Laboratory, and Southwest Research Institute.
I hope everybody enjoyed their holiday. But, before we dive back into the meatier topics of the news, I wanted to share this serpentine graphic from the Guardian I discovered last week. Functionally it is a timeline charting the size of 96 known large asteroid impact craters on the Moon, between 80ºS and 80ºN.
The biggest question I have is whether the wrapping layout is necessary. I would prefer a more simplistic and straightforward, well, straight timeline, but I can imagine space constraints forcing the graphic into this box—either for the digital version and/or the likely print version.
The transparencies help to give a sense of density to the strikes, especially in the later years. And the orange ones highlight important or well-known craters like Tycho.
I do wonder, however, if the designer could have added a line at the 290 million years point. Since the graphic’s title calls that year out in particular, it might help the audience more quickly grasp the graphic’s…impact. In theory, the reader can more or less figure it out from the highlighting of the Ohm impact crater that is listed as 291 million years old. But a small grey line like those for the 250 million year increments could have been a nice little touch.
Overall, however, it’s nice to see a compact and helpful space graphic.
Credit for the piece goes to the Guardian graphics team.