The Cosmic Countertop

Food, Astrobiology, and an Indian Kitchen Perspective

Would aliens enjoy samosas (aka patties made of potatoes and peas) or prefer something stranger—like sulfur-flavored space microbes (aka tiny living organisms—mostly single-celled—too small to be seen with the naked eye and found in nearly every environment on Earth. They include bacteria, viruses, fungi, archaea, and protists)? It sounds funny, but the question isn’t as silly as it seems. At its core, astrobiology—the study of life beyond Earth—is all about one simple question: how does life get energy? And that’s basically asking—what does life eat?

On Earth, we’re used to food coming from sunlight. Plants grow, we eat plants (or animals that eat plants), and the cycle continues. But Earth also hosts life forms with much stranger diets. Some microbes live deep in the ocean near volcanic vents, feeding on chemicals like sulfur instead of sunlight. These organisms completely changed how scientists think about life.

If life on Earth can survive without sunlight, then life on Mars or Jupiter’s moon Europa might exist too—just with a very different “menu.”

Think of it like Indian cuisine. Not every region eats the same food. Some rely on rice, others on wheat, millets, or lentils. The local environment shapes the diet. In the same way, astrobiologists expect life elsewhere to adapt to whatever resources are available, even if they look nothing like food to us.

Astrobiology isn’t only about finding aliens—it also helps humans survive in space. As missions to the Moon and Mars become more realistic, astronauts won’t be able to depend entirely on packaged meals from Earth. Scientists have already grown lettuce and peppers on the International Space Station to see how plants behave in microgravity.

These experiments aren’t just about fresh food; they help us understand how life responds to extreme conditions. If humans can grow crops on Mars one day, it strengthens the idea that life—human or microbial—could survive there too. And let’s be honest, even in space, people would probably miss real food. A future astronaut dreaming of fresh sabzi (aka vegetable gravy dish) isn’t that hard to imagine.

Astrobiology also looks back at how life began on Earth. Before organisms existed, the planet was full of simple molecules that slowly combined into more complex ones. Scientists have found amino acids, the building blocks of proteins, on asteroids—like discovering the basic ingredients for dal (aka lentils) floating through space.

Food may feel ordinary, but it plays a huge role in understanding life in the universe. From microbes feeding on chemicals to astronauts growing vegetables in orbit, food connects our everyday meals to some of the biggest questions in science.

So next time you’re eating rajma-chawal (aka kidney beans and rice) or dosa (crepe made of lentils), remember: the same idea of energy and survival might help us recognize life far beyond Earth 🚀🍽️