Amy J. Williams – The Conversation

NASA’s Perseverance rover explores Mars’ Jezero Crater. NASA/JPL-Caltech/MSSS

September 12, 2025

Scientists detected a potential biosignature on Mars – an astrobiologist explains what these traces of life are, and how researchers figure out their source

Amy J. Williams, University of Florida

Unique, spotted rocks in Mars’ Jezero Crater could indicate that the planet once hosted life.

The surface of Mars is cold, dry and rocky. NASA/JPL-Caltech/ASU

March 12, 2024

NASA’s search for life on Mars: a rocky road for its rovers, a long slog for scientists – and back on Earth, a battle of the budget

Amy J. Williams, University of Florida

Determining whether or not life exists on another planet is an extraordinarily complicated – and expensive – scientific endeavor.

Konsep seniman tentang astronot yang berjalan di Mars. Tapi apa yang akan terjadi jika astronot tidak mengenakan helm luar angkasa? cokada/E+ via Getty Images

July 13, 2022

Bisakah manusia bernafas di Mars?

Phylindia Gant, University of Florida and Amy J. Williams, University of Florida

Mars adalah planet keempat dari Matahari dan salah satu tetangga terdekat kita di luar angkasa. Tapi itu bukan tempat yang sangat ramah untuk dikunjungi penduduk Bumi.

Concepto artístico de un astronauta caminando por Marte. Pero ¿qué pasaría si no llevara un casco espacial? cokada / E+ via Getty Images

May 17, 2022

¿Se puede respirar el aire de Marte?

Phylindia Gant, University of Florida and Amy J. Williams, University of Florida

Marte es el cuarto planeta desde el Sol y uno de nuestros vecinos más cercanos en el espacio. Pero es un lugar muy poco acogedor.

An artist’s concept of an astronaut walking on Mars. But what would happen if the astronaut weren’t wearing a space helmet? cokada/E+ via Getty Images

May 16, 2022

Could people breathe the air on Mars?

Phylindia Gant, University of Florida and Amy J. Williams, University of Florida

Mars is the fourth planet from the Sun and one of our closest neighbors in space. But it’s not a very welcoming place for an Earthling to visit.

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