Space science
On Earth, a compass always points north – but where does it point in space?
On Earth, our planet's magnetic field points north, but in space, things are a bit more complicated.
Earth
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Articles about Earth
6,634 published items.
Discover science
How did people calculate the circumference of the Earth with just a stick?
More than 2,000 years ago, an ancient scientist used only a stick to calculate the approximate circumference of the Earth with 99% accuracy.
Discover science
Huge Block of Material Hidden Under Africa and the Pacific Ocean
Scientists know almost nothing about the origin and composition of two large continent-sized rock masses located on opposite sides of the Earth's inner mantle.
Space science
How to distinguish meteorites from ordinary rocks
Meteorites are often particularly heavy, magnetic, and bear characteristic marks from being heated as they plunged into the atmosphere.
Space science
The Truth About the Discovery of 20,000 Prehistoric Pyramids on Venus
There are theories that in the 1990s, the Soviet Union discovered about 20,000 pyramid-shaped ancient city ruins on Venus, which appeared to have been abandoned long ago.
Space science
The mystery of lonely planets as big as Earth wandering in the Milky Way
An upcoming NASA telescope could discover more than 400 lonely Earth-sized planets wandering the Milky Way.
Space science
Assuming the size of the Earth is 1cm, what is the size of the largest star in the universe?
If the Earth were the size of a marble, the Sun would be the size of a yoga ball, and the largest star in the universe has a diameter that would be hard to believe.
Space science
Jupiter is a gas planet, so if a person stood on the surface of Jupiter, would he fall straight into the core?
Jupiter's atmosphere is divided into four layers: the troposphere, stratosphere, thermosphere, and exosphere. Each layer has its own function and role in Jupiter's activ…
Space science
What is a spacecraft 23 billion kilometers from Earth doing?
The twin spacecraft Voyager 1 and Voyager 2 continue to explore the universe 45 years after launching from Earth and 22 light hours away from the planet.
Space science
Strongest cosmic ray ever recorded detected, origin may be close to Earth
Scientists have discovered the most powerful cosmic rays ever recorded, likely originating from mysterious sources relatively close to Earth.
Space science
The mystery of the rock that 'traveled' through space for tens of thousands of years, then returned to Earth
The 646-gram meteorite once left us, flew out into space, and somehow ended its extraordinary journey on Earth.
Space science
How small is the Earth next to the Sun?
Although it is the largest object in the Solar System, the Sun is only average in size compared to the rest of the stars in the Milky Way galaxy.
Photo library
Stunning photos of the last super blood moon of the decade
People in America and Europe had a memorable night with the appearance of the last supermoon and total lunar eclipse of the 2010s.
Discover science
How to feel the Earth rotating every day? Observe these 4 phenomena!
We know that in this universe, basically all celestial bodies rotate, of course our Earth is no exception.
Oceanography
'Another world' discovered thousands of meters deep under the ice in Antarctica
Scientists have confirmed that an almost completely ice-covered area in Antarctica hides a