 Arnold Blasquez from Spain. I am an astro-article physicist working on CTA. Currently, I am doing my PhD at the Institute for Political Physics in Madrid, Spain. As a researcher, I specialize in Iron, Geo-Astrophysics, focus on cosmology. I am working on dark matter detection with gamma rays. That is one of the most intriguing mysteries of modern physics, mounting up to 25% of the total energy content of the universe, but whose ultimate nature is still unknown. We have several proofs of the existence of dark matter, mainly due to its gravitational effects, but we keep working to unveil what it is. Although dark matter is not expected to be seen in any wavelength, some of the most popular models offer indirect proofs of it. For example, the weekly interactive massive particle, or WIMP, predicts the self annihilation of dark matter into known particles, such as quarks, which will also emit gamma rays in the process. These gamma rays can be detected by CTA, and therefore, can favor or rule out these hypotheses. Another popular model are actions, particles which transform into gamma rays and vice versa in the presence of magnetic fields. Again, CTA could detect these gamma rays and constrain this possible dark matter model. Many dark matter models have been constrained over the years with different gamma ray experiments, such as the Fermilat Space Telescope, MAGIC, HAIS, or VERBITAS. Each of these experiments have different sensitivities and cover different energy ranges, while CTA will improve the sensitivity of all of them and become complementary in certain energy ranges. With CTA combined with all these instruments, we will probe all the interesting parameter space for the dark matter models, with an impressive resolution which can finally shed some light on the nature of this cosmic puzzle. Believe it or not, astrophysics is much more present in our daily life than we think. Technologies such as microwave, GPS, or CCD sensors from digital photography have been invented or developed in the context of astrophysics. Of course, astrophysics tries to answer fundamental questions, but in the process it needs cutting-edge technology, which directly impacts and improves our lives. Being a PhD student can be very different from other kinds of jobs. Many friends have more typical jobs with a fixed routine and shadow. Being a PhD student is more dynamical or flexible, although, of course, it can also be more stressful, like everything it has pros and cons. But you have the feeling to be working for yourself, because in the end, the better you do your job, the better PhD you'll get, so it's a very rewarding experience. Are we getting a future? That's a forbidden question for a PhD student, of course. It is very uncertain, and I would like to continue in that kind of world, but, of course, it will depend on the available offers. Well, actually, I was very interested from a relatively young age in studying physics, probably due to lots of sci-fi movies and video games. When I started at university, the Higgs boson had just been discovered, so everybody was pretty excited about it, and we all wanted to study particle physics and become part of it, etc. But as I learned more and more about astrophysics, I became more interested in it. I actually finished my baccalaureate degree and started my master's degree without a clear idea of what to focus, either astrophysics or particle physics. But, fortunately, I met my PhD supervisor who taught a subject called astropharticle physics, which I didn't know existed and combined the best of all the words. CTE is a huge collaboration of over 1,000 people, coming from almost every part of the world, with very different and diverse backgrounds. For a PhD student like me, it is very exciting to be able to work with so many people, from PhD students to senior scientists. It is an incredible opportunity to learn lots of new things, and different kinds of fields.