Our Planet – Page 3 – Nature Observer

Nature in Autumn: How Plants, Animals, and Ecosystems Prepare for Winter

Autumn is one of the most dramatic seasons in nature. Forests change color, days become shorter, temperatures fall, animals alter their behavior, and plants begin preparing for months of reduced…

DeKa September 26, 2026

History Nature Our Planet

What Was Earth Like 100 Million Years Ago?

One hundred million years ago, Earth was almost unrecognizable. It was the middle of the Cretaceous Period, a time of warm global climates, high sea levels, rapidly changing continents, enormous…

DeKa September 25, 2026

Climate Our Planet What if?

Aurora Colors Explained: What They Mean and Why We Are Seeing the Northern Lights More Often

Auroras once seemed like rare spectacles reserved for travelers near the Arctic Circle. In recent years, however, vivid displays of green, red, pink, and purple light have been reported far…

DeKa September 22, 2026

Climate Environmental Hazards Our Planet

How Solar Activity Affects Earth’s Climate

The Sun is the ultimate energy source for Earth’s climate system. Almost every weather pattern, ocean current, and ecosystem depends directly or indirectly on solar energy. This makes one question…

DeKa September 19, 2026

Be smart Climate Our Planet

The Coriolis Effect: Why Winds, Oceans, and Storms Curve Across the Earth

The Coriolis effect is one of those scientific ideas that seems mysterious until you realize it comes from something very familiar: Earth is rotating beneath everything moving across its surface.…

DeKa September 19, 2026

Climate Crisis Our Planet

Gulf Stream Slowdown: Is the Atlantic Ocean Current Really Weakening?

The Gulf Stream is often described as one of the great engines of Earth's climate. It carries enormous amounts of warm water northward through the Atlantic and helps shape weather…

DeKa September 19, 2026

Be smart Nature Our Planet

Indian Summer: Why Warm, Sunny Weather Can Return in Autumn

Autumn usually brings cooler days, longer nights, misty mornings, and increasingly unsettled weather. Yet sometimes, after the first noticeable chill of the season, the weather suddenly turns calm, dry, and…

DeKa September 19, 2026

Ecology Our Planet Tech & Nature

CO₂ in the Air: How Much of This “Magic Gas” Is Really in the Atmosphere?

Carbon dioxide is one of the most discussed gases on Earth. It is essential for plants, central to the carbon cycle, produced by animals and microorganisms, and one of the…

DeKa September 19, 2026

Crisis Global Challenges Our Planet

Africa’s Biggest Challenges: Why They Are So Difficult to Solve

Africa is one of the most diverse and resource-rich continents on Earth, yet many of its countries still face serious development challenges. These challenges include poverty, weak infrastructure, conflict, rapid…

DeKa September 10, 2026

Be smart Our Planet Tech & Nature

Africa: Geography, People, Wildlife, Cultures, and a Continent of Extraordinary Diversity

Africa is often described in simple terms: deserts, safaris, ancient civilizations, and dramatic landscapes. In reality, it is one of the most diverse regions on Earth, with vast differences in…

DeKa September 10, 2026