It does indeed feel like there's still a long way to go...

There are parts of the universe, and of the electromagnetic spectrum, that we’re not covering with our telescopes—but not as many as you might think!

One of the things I love about Antarctica is how "other-worldly" it feels. As an astrobiologist, it's one of the only places on Earth that make me feel like I'm living my dream: searching for aliens on another planet 😉. 1/

Mars orbiter captures striking images of ‘chaos and craters’ carved by ancient floods https://www.europesays.com/uk/961896/ Stunning new images from Europe’s Mars Express orbiter reveal a rugged Martian landscape carved by catastrophic floods that…

Why did I need to leave Slovakia to pursue my space dreams? Many young people have to make similar difficult decisions when trying to follow their dreams or simply to find jobs to earn a living. 1/

There are parts of the universe, and of the electromagnetic spectrum, that we’re not covering with our telescopes—but not as many as you might think!

Great opportunity for those attending the IAC! 😊

Antarctic Microbe Survival Tests Aboard The International Space Station astrobiology.com/2026/05/anta... #astrobiology #AbSciCon #AbSciCon26 #Chile #ISS #microgravity

I'm often asked what was the most important expedition I went on. I led many expeditions to all seven continents and they were all important in different ways. However, if I had to choose, I would say that my expeditions in Antarctica have so far been the most meaningful for me. 1/

What flings mysteriously powerful particles called 'cosmic rays' at Earth? www.space.com/science/part...

Even though I knew I wanted to become a space biologist and astronaut since I was 8, I hesitated about truly committing to that dream until I was 15. I knew I would have to leave my home country, Slovakia, to pursue such dreams and that I would have to fund everything myself. 1/

This is a composite of two Artemis II photos of the solar eclipse. The zodiacal dust and Sun's corona appear on both sides of the Moon, whereas in the original photos they're on one side or the other. (Minor airbrushing to remove obvious duplicated stars.) Credit: NASA/Artemis II Crew/Paul Byrne

If you're in the Fernandina Beach area, Florida, I'm presenting at an event at Mocama this Friday at 5:00 PM. I hope to see you there! 😊 Friday, May 15th, 2026 at 5:00 PM Mocama, 629 S 8th St, Fernandina Beach, FL 32034

Smile, our mission to study Earth's response to solar winds, has arrived at the launch pad. It is now positioned atop Vega-C’s fourth stage ahead of the 19 May launch #VV29 🚀 🔗 www.esa.int/Science_Expl... @science.esa.int @transport.esa.int @cnes.fr

The Origin, Extension, and Future of the "NASA Definition" of Life. astrobiology.com/2026/05/the-... #astrobiology #NASA #Biology

What was the spark that got me into astrobiology or "space biology", as I called it when I was 8 years old? Sometimes something as simple as browsing through a book can change your life 😊. 1/

Scientists long assumed Venus’s harsh environment would quickly destroy artifacts from probe missions. But a new study makes a compelling case to the contrary

Happy Mother's Day! 😊 Image Credit: NASA #MotherEarth

"You don't look like a scientist" is something I was told quite a lot when I was younger, even after giving presentations for @nasa, like in this picture when I was 21 years old. 1/

From Gas To Stars Along The Spiral Wave: CO, HCN, And Star Formation Variations Across The Spiral Arms In NGC 4321 And M51 astrobiology.com/2026/05/from... #astrobiology #astrochemistry #interstellar

Astrobiology opportunity 😊

Career paths towards our dream jobs are not always straightforward. In my case, I created my path towards astrobiology by applying for various scholarships, grants and research opportunities to make my education fit my goals. 1/

...and...here...we......go!

How The Rise Of Continents May Have Set The Stage For Life On Earth astrobiology.com/2026/05/how-... #astrobiology

Webb & Hubble have looked at thousands of young star clusters in four nearby galaxies ✨🧪🔭 Their new findings give us a better grasp of star formation and how planets form. Read more 👉 www.esa.int/Science_Expl... @science.esa.int

This is exactly the type of problem I've been highlighting for many years in the area of planetary protection

NASA just released over 12,000 new photos from the Artemis II mission. I didn't have a chance to look through them all yet, but this one caught my eye 😍. 1/

Hey look, Kīlauea is back at it yet again. And by it I mean erupting www.youtube.com/live/gXKuUyK...

There are so many amazing pictures there 😍

"If we want to understand the universe, we must first understand ourselves." That's a very fitting quote summarizing a recent interview, where I talked about the importance of the human element during space missions. 1/

ICYMI, article from me last week about cool new organic molecules (naphthalenes and benzothiophenes, two-ring molecules!) found in a Curiosity sample from back in Glen Torridon: skyandtelescope.org/astronomy-ne...

What did space deliver for Europe this month? From the Moon to low Earth orbit and beyond, here’s what we've been up to!

May the 4th be with you! 😀 For the Star Wars fans out there, here's a flashback to my simulated lunar mission, Selene III, when we decided to do this fun group photo of the crew 😊.

Day 079, orbit 1222 — Sunday morning science with @esa.int astronaut Sophie Adenot, episode 5: Water and convex lenses, part II.   🎥 ESA/NASA #εpsilon

A typical day on "Mars" is a mixture of doing scientific, technological and what I call 'maintenance' work. During simulated missions on Mars, we each have our own project to attend to, but we all chip into the tasks that are necessary for a long duration human spaceflight mission. 1/

I've been enjoying these educational videos by astronaut Sophie Adenot :)

See May's full 'Flower Moon' bloom in gorgeous photos from around the world www.space.com/stargazing/s...

Methanogens Through Time and Space: Impact on Earth’s Planetary Evolution and Biogeochemistry astrobiology.com/2026/05/meth... #astrobiology #microbiology #genomics

My experiences leading expeditions in extreme environments have helped me become a better Commander of simulated missions to the Moon and Mars, and vice versa. 1/

Who can go to "Mars" in Slovakia? 1/

Offworld Science Droids: A Review Maps Key Technologies For Small-body Sampling Robots SmartBot astrobiology.com/2026/04/offw... #astrobiology #droid #robotics

My two great passions, searching for aliens and preparing humans for life on Mars don't always go hand in hand. I believe that sending astrobiologists-astronauts to Mars would substantially increase our chances in finding potential life on Mars and doing a significant amount of research there. 1/

You may see some stories this afternoon about a breakthrough measurement from Chandra of x-rays booming off a "little red dot" previously discovered by JWST. It's a cool result—and @sciam.bsky.social had the story back in February! www.scientificamerican.com/article/x-ra...

I had to leave my home, in Slovakia, in pursuit of my space dreams because of the lack of opportunities in my country almost 20 years ago. I'm very happy that I have since then been able to bring various space opportunities back home, which include the first simulated Mars mission in Slovakia. 1/

Kick-off Of Feasibility Study For A New Generation Of European ALMA Receivers astrobiology.com/2026/04/kick... #astrobiology #astronomy #astrochemistry

James Webb Space Telescope's strange little red dots may really be 'black hole stars', X-ray data suggests www.space.com/astronomy/bl...

NASA’s Perseverance, Curiosity Panoramas Capture Two Sides of Mars astrobiology.com/2026/04/nasa... #astrobiology #Mars #astrogeology

What have we learned from asteroid sample return missions?

My newest documentary, The Boss - Aconcagua, is about my research & educational expedition to the tallest mountain in South America, Aconcagua. We filmed it with my partner Cameron Crowell while performing astrobiology research in collaboration with NASA & enduring many challenges during our climb.

Science Goals and Objectives for the Dragonfly Titan Rotorcraft Relocatable Lander astrobiology.com/2026/04/scie... #astrobiology #astrogeology