Is Venus Still Tearing Itself Apart?

New three-dimensional computer simulations reveal that Venus’s massive rift valleys formed geologically recently — not billions of years ago — and that the planet is still actively pulling itself apart today.

The Evidence Hidden in Venus’s Rift Valleys

For decades, scientists assumed Venus was geologically dead. The prevailing view held that the planet’s surface was catastrophically overturned roughly 500 million years ago and then went essentially dormant — a world frozen in time. New 3D simulations have shattered that assumption.

The key evidence comes from the shape of Venus’s rift valleys themselves. The flanks of these rifts are still remarkably sharp and well-preserved. If they had formed hundreds of millions of years ago on a planet as geologically hostile as Venus — where surface temperatures reach 870°F (465°C) — erosion and volcanic resurfacing would have softened and buried those edges long ago. Their crisp geometry points to a much more recent origin.

How Deep Are Venus’s Rift Valleys?

One of the most dramatic examples is Devana Chasma, a colossal rift that plunges up to approximately 16,000 feet (about 4,900 meters) deep. That makes it comparable in scale to Earth’s East African Rift Valley — one of our own planet’s most geologically active features. The sheer scale of Devana Chasma, combined with its fresh topographic profile, is one of the strongest arguments that rifting on Venus is an ongoing process, not an ancient relic.

Venus Has No Tectonic Plates — So What Is Causing This?

This is where things get genuinely strange. On Earth, rift valleys form because tectonic plates are moving apart, driven by convection currents in the mantle. Venus has no such plate tectonic system. Its crust is a single, continuous shell with no moving plates to speak of.

Yet something is still tearing it open. Scientists point to mantle upwellings — massive plumes of hot material rising from deep within the planet’s interior — as the most likely culprit. These upwellings push against the underside of the crust with enough force to bow it upward and stretch it to the breaking point, creating rift structures without the need for drifting plates. It is a fundamentally different mechanism from anything we see on Earth, and it suggests Venus has developed its own unique style of tectonics.

Why Does This Rewrite What We Know About Venus?

The old model treated Venus as a cautionary tale of geological shutdown. One catastrophic resurfacing event, then silence. The new simulation data forces scientists to revise that picture dramatically. Venus is not a dead world — it is a world with an active interior still expressing itself at the surface in real time.

This has broad implications for how we think about planetary evolution. If Venus can sustain geological activity without plate tectonics for hundreds of millions — or even billions — of years, it challenges assumptions scientists routinely apply to rocky planets elsewhere in the universe, including exoplanets in other solar systems.

What Comes Next in Venus Research?

Three upcoming missions — NASA’s DAVINCI and VERITAS, and the European Space Agency’s EnVision — are specifically designed to study Venus’s geology and atmosphere in unprecedented detail. VERITAS in particular will map the surface with high-resolution radar, potentially capturing direct evidence of recent or ongoing rifting. If the new simulations are correct, those missions could confirm that our closest planetary neighbor is one of the most geologically dynamic worlds in the solar system.

Venus has been hiding in plain sight for centuries. It turns out we barely knew it at all.