PurPassionSky

Planetary Scientist

The pull to understand what isn't yet understood

Discovery · Unknown → Known

The shape of the work

Pace
  • A steady rhythm with room to breathe
  • Short, intense, and the stakes are right now
What your week looks likeQuiet stretches, then deadline storms
How much you move around at workMostly at a desk, but you get up for site visits or other work
Whether you can work from anywhereMostly on-site, with the odd remote day
How quickly you receive feedback on your workYou might wait years to see if it mattered
What you're actually working withNumbers, measurements, records — things you read on a screen / Concepts, theories, designs, stories — things you think up / Materials, organisms, land, equipment — things you can touch

Behaviours this work is made of

Core
  • Breaking something into its real components.
  • Going into unmapped territory, literal or intellectual.
  • Careful, sustained attention to what's actually happening.
  • Systematic, methodical pursuit of understanding.
Also present
  • The moment something previously hidden becomes known — not by reasoning alone but by encounter. The pull is toward revelation through direct experience: field work, laboratory observation, archival research, clinical encounter. What distinguishes discovering from researching is the emphasis on the moment of finding itself.
  • Charting territory, making the unknown navigable.
  • Quantifying what's happening so it can be reasoned about precisely.

In words

A planetary scientist studies the worlds of the Solar System and beyond — planets, moons, asteroids, comets, and the growing catalogue of exoplanets — to understand how they formed, how they work, and whether any of them could host life. The data come from spacecraft (orbiters, landers, rovers, sample-return missions), from telescopes, and from the laboratory analysis of meteorites and returned samples. It is the most tangible corner of astrophysics: the objects are real places with surfaces, atmospheres, weather, and geology, and a good fraction of the field looks more like geology, atmospheric science, or chemistry than like the physics of distant stars.

The work braids Discovery with Exploration in the most literal sense — the mapping and characterising of places no human has been. Much of it is patient analysis: turning rover images and spectra into a geological history, or a sequence of brightness measurements into the size and orbit of an exoplanet. The Revelation underneath is the act of reading a world's hidden past out of its present surface — a crater count that dates a terrain, a chemical signature that reveals an ancient ocean.

The exoplanet branch has exploded into one of the most active areas in all of science, and it sits at the boundary between planetary science and mainstream astrophysics: detecting planets around other stars, measuring their atmospheres, and asking which might be habitable.

There's a guide here if you want one

Kitsune can talk through anything on this page — whether it might suit you, what to do next, questions this page doesn't answer. Everything here is yours to read either way.

The timescales are long, and they tie a career to specific spacecraft. A flagship mission can take a decade or more from approval to data, which means early career choices (which mission, which instrument, which institution) shape a working life for years. Missions also get cancelled or delayed, and a team can invest years before knowing whether the data will ever arrive.

It is more interdisciplinary than its name suggests. Geology, chemistry, atmospheric physics and orbital dynamics all turn up, and the work happens alongside engineers whose constraints (power, mass, bandwidth) directly limit what science is possible. People who want pure physics are sometimes surprised by how much earth science the field contains.

A degree in physics, astronomy, earth sciences, or a related quantitative science, then a PhD in planetary science or a closely related area; STFC funds planetary science studentships in the UK alongside the rest of astronomy [STFC/UKRI 2025-26]. Routes increasingly run through the space agencies and the universities that partner on missions, and in Portugal through IA and the ESA membership that gives Portuguese researchers a stake in European missions [IA 2025]. Pay tracks the broader research-science scale [from salary and job-posting data, Prospects/PayScale 2025-26].

Before you go