HBD Carnegie Science - Carnegie Science Day 2025

Happy Birthday, Carnegie Science!

On this second annual Carnegie Science Day, we're celebrating the many ways Carnegie researchers are advancing discovery across interconnected frontiers. Together, these stories reflect a single idea: breakthroughs are most powerful when curiosity crosses boundaries.

Join us as we count down to January 29. Throughout the week, we’ll be adding new stories and interviews tackling big questions—from whether life ever existed on Mars, to how we might recognize life on other worlds, to the outsized role microbes play in shaping life on Earth.

Explore below, check back daily, and follow along on Instagram @CarnegieScience for updates, interviews, and behind-the-scenes highlights.

#HBDCarnegieScience

#HBDCarnegieScience 🎂 

All week long, we’re sharing special #CarnegieScienceDay videos across our social media channels—from scientist interviews to behind-the-scenes moments. Follow along and join the conversation.

NASA’s Webb Sheds Light on Galaxy Evolution, Black Holes | Credits: NASA, ESA, CSA, and STScI

How Do Worlds Begin?

"Star Stuff” → Planets

A world isn't built in a day. Over billions of years, the raw materials from which planets form are synthesized and strewn throughout the universe by an array of cosmic processes ranging from star formation and evolution to massive stellar exposions and galaxy collisions. Carnegie scientists study these phenomena to understand how worlds—and the ingredients for life—come together.

Trace the origins of worlds

What Does It Take for Life to Begin?

Planets → Life

Not every planet becomes a home for life. Stellar activity, planetary chemistry, and geologic history all shape whether a world can support living systems—or lose that potential. Carnegie scientists study these forces to understand how some planets become habitable and how life can take hold.

Explore the building blocks of life
Bobtail Squid

How Would We Recognize Life?

Life on Earth → Life Elsewhere

Life leaves fingerprints. On Earth, biology reshapes chemistry, rocks, and ecosystems in ways that remain detectable long after they form. By studying these signals—from ancient photosynthesis to modern symbioses—Carnegie scientists learn how life makes its presence known and apply those lessons to the search for life beyond Earth.

Probe the signs of life beyond Earth