Sometime in the early 2000s, this place was still a speck of data in some astronomers brain. The announcement of a system of seven earth-sized planets was pretty big. The further revelation of three of those worlds sitting within their stars habitable zone was the icing on the cake.
As the first intelligent explorers approach TRAPPIST-1e, we present to you these images: the culmination of decades of waiting, hoping that return transmissions from the TRAPPIST-1 mission wouldn’t get lost in interstellar space. There were those who worried that anything beamed back by the missions wouldn’t even make it out of the system. TRAPPIST-1 is a red dwarf star: a tiny relic of a thing but incredibly ancient. Age estimates range from 8 to 12 billion years old. Red dwarf stars tend to be nasty little suckers, and TRAPPIST-1 is no exception. Extreme solar flare activity sometimes hits the system, as the parent star has a tantrum. Communication from the system is nothing short of a miracle. Nevertheless, here are some of the better images we’ve managed to glean from the stream of data being sent back. Thirty nine years worth. Thirty nine years of waiting.
Approach: A New Red Planet
The very first direct images of TRAPPIST-1 and it’s rocky retinue were messy little blobs of pixels.
Of course, many exoplanets (and exomoons) had been imaged directly using a variety of techniques. The use of coronagraphs to scrape together images from points of light across impossible distances was revealing new vistas for a long time. The following image was taken all the way back in 2004:
A disc of debris around the red dwarf star AU Microscopii. Image: Hubblesite.org
Of course, progress marched on, and as missions approached the system the world waited for new images. A first blurry image sped across the galactic neighbourhood:
This image was a first test. As the mission approached the system, we began seeing more. High quality imaging was held off until final approach, in the interests of energy efficiency.
An infrared and monochromatic direct light image, taken from a distance of approximately 11 AU. Images: Ben Roberts
TRAPPIST-1e was waiting for us.
Imaging of exoplanets is explored in a new video, presenting the concept of coronagraphy. Help astrobiology reach the world (this and others) by checking it out. Subscribe and share if you like.
This post is the first of a series taking us on a trip to a real alien world, and speculating on just what it could be like, using real world astrobiology. I hope you like it!
It’s been estimated that a good percentage of planets beyond our solar system may be water worlds.
We here on mother Earth like to think of our blue green marble as a water world. Indeed it is watery, and water is pretty much the reason anything lives here at all. That’s why astrobiologists naturally seek signs of water on exoplanets. “Follow the Water” is a central tenet in the search for extraterrestrial life.
But compared to some worlds, earth really isn’t that waterlogged at all. It’s 0.002 percent water by mass. Only a tiny fraction of that water is available to terrestrial life. That water which isn’t directly involved in biological processes is linked to them, linking life to the planet via seasons and climate.
Some exoplanets are believed to be up to fifty percent water! These are true ocean worlds. To date, up to thirty five percent of exoplanets larger than may be covered by vast layers of water that may or may not harbour life. The jury is well out on that, but the idea is intriguing (and tempting) as the traditional definition of habitable zones is being stretched and reinterpreted.
A water world with a thick atmosphere of steam.
For now, we have only our imaginations with which to explore these worlds…
An aerial view of remote coastline on a hypothetical watery exoplanet.
A new video!
I’ve been thinking some of these may look good as posters. Thoughts anyone? They provide another way to reach people, as I myself continue to explore and learn about a truly incredible topic.
I like the look and think my channel will finally benefit from a coherent look and vibe. The retro font works for me, and the surreal, fantastic feel of the pictures is my jam.
A new video exploring the possibility of directly imaging exoplanets is coming very soon!
Here is a snippet; sans sound or effects just yet!
The universe is turning out to be a more interesting place with each passing day for me. It’s not all about reading research articles and trawling the internet for interesting news in the vast field that is astrobiology.
I’ve been working on images related to various themes in astrobiology. This field really is a playground for the imagination, and it has something for everyone….
Recent news of a relic subsurface biosphere just beneath the surface of Mars…
Our ones and zeroes formed in starlight?
Something really special here: possible traces of limestones found in the fragments of objects orbiting a nearby white dwarf star…
Differing definitions of the Habitable Zone further push the limits of life in the universe..
Svante Arhenius, a swedish chemist and early pioneer of the theory of panspermia..
Ruminations on the code (codes?) that make life possible. How many languages does life have in the Universe?
Does the chemical rich, pitch black seabed of Europa host life? Does that of Enceladus?
The first image I created. I hope you’ve like these. There will be more! By the way, the background for this image comes from an online simulator called Goldilocks, by Jan Willem Tulp. His work can be found here. It’s really cool.
Hey all. I’m finally excited about something for the first time in awhile. I recently received a tablet from my LOVELY wife. It’s a Wacom Intuos Pro. I have been wanting an art tablet for years now. I had one once, but it was a slow, crappy little thing on slow crappy little computers. This one is a bit more high end.
This thing has opened up creaking doors in my brain, which I thought had fused shut. It’s even been helping me in a therapeutic sense. I have had some pretty dark years recently, and they have taken their toll. This tablet has enabled my mind to properly elucidate and crystallise several things which have been weighing me down…
Sometimes art can give a form to nameless and shapeless fears. It can help you contain and control them, by capturing them on paper (so to speak)…
This tablet is already hard at work, helping me with my next video, which takes a look at how a quaint little engine from the nineteenth century could help us take a real look at the surface of Venus!
Lots of things sloshing around in my head! The video is shaping up to be a lot of fun! I hope you can check it out when it’s up! I will start putting up artwork as it comes. Here’s the thumbnail for the video..What do you think?
Find me on my facebook group, where astrobiology is the name of the game!