Category Archives: Science

Galaxy Zoo Quench: A New Kind of Citizen Science

A new ‘mini’ project went live yesterday called Galaxy Zoo Quench. This project involves new images of 6,004 galaxies drawn from the original Galaxy Zoo. As usual, everyone is invited to come and classify these galaxies, but this project has a twist that makes it special! We hope to take citizen science to the next level by providing the opportunity to take part in the entire scientific process – everything from classifying galaxies to analyzing results to collaborating with astronomers to writing a scientific article!

Galaxy Zoo Quench

Galaxy Zoo Quench is examining a sample of galaxies that have recently and abruptly quenched their star formation. These galaxies are aptly named Post-Quenched Galaxies. They provide an ideal laboratory for studying galaxy evolution. So that’s exactly what we want to do: with the help of the Zooniverse community. We hope you’ll join us as we try out a new kind of citizen science project. Visit to learn more.

The entire process of classifying, analyzing, discussing, and writing the article will take place over an ~8-12 week period. After classifying the galaxies, Quench volunteers can use to plot the data and look for trends. We also have a special Quench Talk forum to discuss and identify key results to include in the paper – above you can see examples of some of the cool objects people have already found and discussed.

Have questions about the project? Leave a comment here or ask us on Twitter (@galaxyzoo) or on the Galaxy Zoo Facebook page. In case you’re worried: the regular Galaxy Zoo will continue as normal.

Now go visit and start classifying!

New Project: Join the Search for ‘Space Warps’

Gravitational lenses – or ‘space warps’ – are created when massive galaxies cause light to bend around them such that they act rather like giant lenses in space. By looking through data that has never been seen by human eyes, our new Space Warps project is asking citizen scientists to help discover some of these incredibly rare objects. We need your help to spot these chance-alignments of galaxies in a huge survey of the night sky. To take part visit

A Gravitational Lens

Gravitational lenses help us to answer all kinds of questions about galaxies, including how many very low mass stars such as brown dwarfs – which aren’t bright enough to detect directly in many observations – are lurking in distant galaxies. The Zooniverse has always been about connecting people with the biggest questions and now, with Space Warps, we’re taking our first trip to the early Universe. We’re excited to let people be the first to see some of the rarest astronomical objects of all!

The Space Warps project is a lens discovery engine. Joining the search is easy: when you visit the website you are given examples of what space warps look like and are shown how to mark potential candidates on each image. The first set of images to be inspected in this project is from the CFHT (Canada-France-Hawaii Telescope) legacy survey.

Computer algorithms have already scanned the images, but there are likely to be many more space warps that the algorithms have missed. We think that only with human help will we find them all. Realistic simulated lenses are dropped into some images to help you learn how to spot them, and reassure you that you’re on the right track. Previous studies have shown that the human brain is better at identifying complex lenses than computers are, and we know at the Zooniverse that members of the public can be at least as good at spotting astronomical objects as experts! We’re going to use the data from citizen scientists to continuously train computers to become better space warp spotters.

This is a really exciting project and you can read more on the Space Warps blog. As with our other projects it can also be found on Twitter (@SpaceWarps), on Facebook and you can discuss any interesting objects you find on Space Warps Talk. We’re really excited about this project and think you’ll be able to make some amazing discoveries through it.

New Publications Page

Zoo Avatars

This year has been a very productive one for the Zooniverse. Planet Hunters, Galaxy Zoo, the Milky Way Project, Ice Hunters, Whale FM Solar Stormwatch and Galaxy Zoo: Supernovae all released peer-reviewed papers, producing science results based on your clicks. We also released a slew of new projects (with more to come!) and all of this is about doing science in a new way: with your help.

We’re kicking off our 2012 Zooniverse Advent Calendar with the release of our new publications page which lets you find these papers, and all the papers from all Zooniverse projects. We aim to have many more projects published by this time next year.

However you celebrate the festive season – or whether you do it at all at this time of year – we hope you’ll enjoy opening each day of our advent calendar between now and Dec 24th. We have some fun items ready to show you, and a few really big announcements too.

A very good day in Austin

Every January, a travelling circus of astronomers and their friends rolls into an American city. This travelling carnival, the winter meeting of the American Astronomical Society, brings together literally thousands of people, ostensibly to give talks about cutting edge research, but more importantly to meet, greet, gossip and collaborate.

Photo by Sarah Kendrew released under CC-by-nc-sa/2.0/

Eli Bressert (Milky Way Project) & Kevin Schawinski (Galaxy Zoo)

This year’s festivities started in Austin, Texas over the weekend, and amongst the gathered throng are many of the Zooniverse astronomers, who contributed to a Monday that demonstrated the wonderful use to which the hard work of registered volunteers is being put.

I missed some of the morning sessions, but was in the main conference hall to hear Bob Benjamin plug the first Milky Way Project paper, soon (we hope) to be accepted following a very positive referee’s report. The more than 5000 bubbles discovered by MWP project participants will, he said, help us map the nearby galaxy.

This high-profile support followed a talk given over the weekend by MWP science team member Matt Povich to a smaller gathering of early-career researchers who are funded as National Science Foundations fellows. Also presenting was Planet Hunters’ very own Meg Schwamb, and after lunch it was my turn to present Zooniverse results, announcing the discovery of two new planet candidates by volunteers. Particularly pleasing here was the involvement of the Talk tool, specifically developed to make it easier for the science team to follow up on interesting discoveries.

Last time the astronomers of America gathered in Austin, we were less than a year into Galaxy Zoo, and the highlight was the arrival during the meeting of the first high-resolution spectrum of Galaxy Zoo’s famous Voorwerp. It was therefore particularly pleasing when Kevin Schawinski nudged me in an early talk, pointing out the appearance on Chandra’s schedule of observations include observations of the Voorwerp’s neighbouring galaxy, IC2497.

Those observations arrived on Monday afternoon and Bill Keel, Kevin and I had a happy few minutes pouring over them (we only had a quick look image, so there’s a limit to what we can say!). There’s lots of work to be done before we can draw too many conclusions, but we’d struggled to win Chandra time, so it’s wonderful to see data flowing. Just down the corridor, Sarah Kendrew from MWP was talking to Ramin Skibba from Galaxy Zoo about techniques for matching different clases of objects.

After the plenaries, Kevin, Bill and I joined a dozen or so members of the Galaxy Zoo team, who are presenting five times over the next few days, making sure that we’re making the most of Galaxy Zoo results. The discussion was about the next iteration and iterations of the GZ site, but that’s a story for another time.

A few hours, and a few different sessions, and Zooniverse science had been highlighted in several different ways. There’s no doubt that the kind of ‘citizen science’ projects at which the Zooniverse excels are becoming more popular, and you’ll see more of them both from the Zooniverse and elsewhere over the next few months. The acid test, though, remains whether a project can actually produce science, an outcome that’s the result of careful design, smooth implementation but also of commitment and hard work from scientists like those on the Milky Way Project, Planet Hunters and Galaxy Zoo teams. Without those things, it’s incredibly easy to waste a large amount of volunteers’ time, breaking the implicit contract that exists between project team and volunteer when we ask for your help.

Of the eight Zooniverse projects that were live at the beginning of 2011, six (the three already mentioned along with Solar Stormwatch and Galaxy Zoo : Supernovae which have papers, and Old Weather has contributed data to its climate scientists) have serious published results. Of the other two, we now have funding for a three year Moon Zoo postdoc in London to make use of the data that’s been collected, and I have a meeting tomorrow to look at the results from 5 million simulations in the mergers project. It’s a track record that everyone involved with the Zooniverse can be very proud of, a challenge to anyone thinking of launching their own projects, and it’s certainly getting us notice amidst the chaos and clamour of AAS. Thanks a million for making it happen, click, by click, by click.