Earth’s 27.5-Million-Year Pulse: The Planet’s Mysterious Rhythmic Upheaval
Scientists have uncovered something astonishing: Earth seems to operate on a hidden clock.
Every 27.5 million years, our planet goes through a powerful geological reset — a "heartbeat" that triggers mass extinctions, giant volcanic eruptions, tectonic shifts, and dramatic sea-level changes.

In a study published in Geoscience Frontiers, researchers analyzed 89 major geological events over the past 260 million years. The result? These catastrophic moments don’t happen randomly — they occur in predictable clusters, spaced out like rhythmic pulses in deep time.

What Happens During These Pulses?
Global mass extinctions (land and sea)
Supervolcanic eruptions (like continental flood basalts)
Oxygen-starved oceans (anoxic events)
Rising or falling sea levels tied to climate shifts
Massive tectonic reorganizations

This isn't a brand-new theory — as early as the 1920s, scientists suspected a 30-million-year cycle. But now, with more data and advanced analysis, 27.5 million years has emerged as the most consistent interval.

It’s a stunning idea: that Earth’s most violent transformations follow a deep, cosmic rhythm — a geological metronome shaping life, death, and rebirth across eons.

Source:
Rampino, M.R. et al. (2021). "A pulse of the Earth: A 27.5-Myr underlying cycle in coordinated geological events over the last 260 Myr." Geoscience Frontiers.

This breathtaking image of Jupiter was captured on October 27, 2024, during the Juno spacecraft’s 66th close approach—also called a perijove—to the gas giant.

The raw data collected by Juno was transformed into this stunning visual by dedicated citizen scientists, who processed and enhanced the imagery to reveal the planet’s mesmerizing swirls and storm systems. By adjusting contrast and blending various wavelengths of light, they unveiled incredible atmospheric detail far beyond what’s visible in natural color—turning Jupiter’s usual cappuccino tones into a dramatic display of swirling clouds.

In this image, you can spot a mix of large and small atmospheric vortices—some spinning solo, others merging and interacting in complex patterns. These dynamic features reflect the ever-shifting nature of Jupiter’s turbulent atmosphere.

Beyond their beauty, these visuals are scientifically powerful. Juno’s mission is to explore Jupiter’s atmosphere in greater depth than ever before—uncovering the mechanisms behind its fierce storms, jet streams, and immense weather systems.

Credit: NASA / JPL / SwRI / MSSS / Gerald Eichstädt / Thomas Thomopoulos © CC BY 3.0

Solar Eclipse Lunar Eclipse
...and the last one? That’s not an eclipse — that’s how the world ends "

Between August 28 and September 3, 1859, our planet endured the strongest geomagnetic storm ever documented — a solar tempest so intense that it painted the night skies worldwide with dazzling auroras, visible as far south as the Caribbean islands. Telegraph networks throughout Europe and North America were disrupted, igniting fires and, in some cases, continuing to function without batteries, powered purely by the storm’s electric energy. This historic event, known as the Carrington Event, serves as a powerful reminder of the Sun’s immense force — and a warning of the potential impact such an event could have on today’s technology-reliant society.

Living with Astrophilia

Every star tells a story.
Every night, a new page in the sky.

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