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.

Jalapeño Cornbread Salad

Layered Jalapeño Cornbread Salad with Bacon, Veggies, and Ranch Dressing

Ingredients:

For the jalapeño cornbread:

1 cup cornmeal

1/2 cup all-purpose flour

1 tablespoon sugar

1 teaspoon baking powder

1/2 teaspoon baking soda

1/2 teaspoon salt

1 cup buttermilk

1 egg

2 tablespoons melted butter

1/2 cup shredded cheddar cheese

1–2 jalapeños, finely chopped

For the salad:

6 slices cooked bacon, crumbled

1 cup cherry tomatoes, halved

1/2 red onion, finely diced

1 cup corn kernels (fresh, canned, or thawed frozen)

1 green bell pepper, diced

1 cup shredded cheddar cheese

2 cups romaine lettuce or mixed greens, chopped

1 1/2 cups ranch dressing (bottled or homemade)

Chopped green onions or parsley, for garnish

Directions:

Preheat oven to 400°F (200°C). Prepare jalapeño cornbread by mixing all dry ingredients in a bowl. In a separate bowl, whisk together buttermilk, egg, and melted butter. Combine wet and dry ingredients, fold in cheese and jalapeños.

Pour into a greased baking pan and bake for 20–25 minutes or until golden. Let cool completely, then crumble.

In a large trifle bowl or glass dish, layer ingredients in the following order: crumbled jalapeño cornbread, lettuce, corn, tomatoes, onion, bell pepper, bacon, cheese, and ranch dressing. Repeat layers if space allows.

Finish with a drizzle of dressing on top and garnish with chopped green onions or parsley.

Chill for at least 1 hour before serving for best flavor.

Prep Time: 25 minutes | Cooking Time: 25 minutes | Total Time: 50 minutes
Kcal: 540 kcal | Servings: 8 servings

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A little spicy, a lot of flavor This Jalapeño Cornbread Salad is loaded with bold layers, crispy bacon, creamy ranch, and cheesy goodness!

Indonesia’s Lewotobi Laki-Laki volcano, located on Flores Island, erupted twice in the span of two days—on June 17 and 18, 2025. The first eruption launched a massive ash plume nearly 11 kilometers (about 6.8 miles) into the sky, forming a dramatic mushroom-shaped cloud visible from up to 150 kilometers away.

The second eruption followed with a slightly smaller ash column reaching 3–5 kilometers high. These eruptions prompted authorities to raise the volcano’s alert status to the highest level (Level 4), indicating significant risk to nearby populations.

The eruptions forced the closure of Maumere Airport and disrupted dozens of international flights to and from Bali, affecting travelers from India, Singapore, Australia, and other countries.

Officials extended the evacuation zone to an 8-kilometer radius around the volcano, urging residents of villages like Boru, Hewa, and Watobuku to leave the area. Ash and volcanic debris blanketed these communities, though fortunately no casualties have been reported so far.

The Indonesian volcanology agency warned of further activity, especially given recent heavy rainfall, which raises the risk of secondary hazards such as lava flows or volcanic mudslides.

Emergency teams continue to monitor the volcano closely, while local residents brace for possible aftershocks or additional eruptions in the coming days.

Shrimp and Pineapple Pasta

Creamy Shrimp and Pineapple Pasta with Chili-Lime Zest

Ingredients:

12 oz (340g) linguine or spaghetti

1 tablespoon olive oil

1 lb (450g) shrimp, peeled and deveined

2 garlic cloves, minced

1/2 teaspoon red chili flakes (optional)

1 cup fresh pineapple, chopped

1/2 cup coconut milk

1/4 cup grated Parmesan cheese

Zest of 1 lime

Juice of 1/2 lime

Salt and pepper, to taste

2 tablespoons fresh basil or cilantro, chopped

Directions:

Cook pasta according to package directions until al dente. Drain and set aside.

In a large skillet, heat olive oil over medium heat. Add shrimp and cook for 2–3 minutes per side, until pink and opaque. Remove shrimp and set aside.

In the same skillet, add garlic and chili flakes; sauté for 30 seconds. Add pineapple and cook for 3–4 minutes, allowing it to caramelize slightly.

Pour in coconut milk and bring to a simmer. Stir in lime zest, juice, and Parmesan. Season with salt and pepper.

Return shrimp to the pan, followed by the cooked pasta. Toss everything together until well coated and heated through.

Sprinkle with fresh herbs and serve hot.

Prep Time: 10 minutes | Cooking Time: 20 minutes | Total Time: 30 minutes
Kcal: 430 kcal | Servings: 4 servings

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Sweet, spicy, creamy, and tropical This Shrimp and Pineapple Pasta is a bold twist that brings the beach to your bowl!

At the edge of our solar system lies a turbulent boundary called the heliopause—the region where the solar wind (a stream of charged particles from the Sun) is stopped by the interstellar medium.

When NASA’s Voyager 1 crossed this boundary in 2012, and Voyager 2 followed in 2018, both spacecraft made a remarkable discovery: a region where the temperature of interstellar plasma spikes dramatically, reaching an estimated 30,000 to 50,000 Kelvin.

This phenomenon has sometimes been described as encountering a “wall of fire” or a “50,000 Kelvin wall,” though these terms are metaphorical.

The high temperature doesn’t mean it’s a literal, fiery wall. Rather, it refers to the kinetic energy of the sparse plasma particles found beyond the heliopause.

Despite the extremely high temperatures, the density of particles in this region is extraordinarily low, meaning that the heat doesn’t transfer in a way that would damage spacecraft or feel "hot" by human standards.

The heating is likely due to magnetic reconnection—an energetic process where magnetic fields from the Sun and the interstellar medium interact and release energy, compressing and heating the plasma.

This "hot wall" marks the boundary where the Sun’s influence ends and true interstellar space begins.

Voyager’s instruments were able to detect this change using a combination of plasma wave sensors, cosmic ray detectors, and magnetometers.

These tools confirmed the change in environment—particularly noting an increase in cosmic ray activity and changes in magnetic field orientation—which further validated the spacecraft had entered a new domain of space.

In summary, while the phrase “50,000 Kelvin wall” sounds dramatic, it is scientifically grounded in real data from the Voyager missions.

It refers to a heated, ionized region just beyond the heliosphere, offering critical insights into how our solar system interacts with the larger galactic environment.

The finding not only helped define the solar system’s outermost limits but also provided invaluable clues about the nature of interstellar space.