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The first people to reach the Kitsissut Islands off the north-west coast of Greenland were Indigenous peoples, who crossed over 50 kilometres of treacherous water

A new study co-led by the Department of Earth and Planetary Sciences at The University of Hong Kong (HKU) and the Department of Atmospheric and Oceanic Sciences at the University of California, Los Angeles (UCLA) reveals that plasma waves traveling along Earth’s magnetic field lines act like an invisible power source, fueling the stunning auroral displays we see in the sky.

Peering from the shadows, the

Supernova Remnant Cassiopeia A

NGC 1275 in the Perseus Cluster

Most galaxies don't have any rings -- why does this galaxy have three?

Oh what a

What part of Orion is this?

An unusually active sunspot region is now crossing the Sun.

NASA’s SpaceX Crew-12 mission is preparing to launch for a long-duration science mission aboard the International Space Station. During the mission, select crew members will participate in human health studies focused on understanding how astronauts’ bodies adapt to the low-gravity environment of space, including a new study examining subtle changes in blood flow.

I always say that one of the things that separates real science from pseudoscience is that while in both you’re allowed to say whatever crazy idea pops into your mind, in real science you’re obligated to take that idea seriously.

For almost two decades, scientists have debated whether sponges or comb jellies are the first animal lineage. Now some are calling for a more harmonious approach.

Prime numbers have fascinated humankind for generations—here are three of the most intriguing primes

The decorated Olympic skier has had numerous injuries and a partial knee replacement but still plans to go for the gold at the 2026 Winter Olympics

Watching sporting events like the Super Bowl can influence our brains and bodies—and not always in a good way

Earth Observatory

1. Science
2. Earth Observatory
3. A Grand, Snow-Rimmed Canyon

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• Earth Observatory
• Image of the Day
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Earth Observatory

1. Science
2. Earth Observatory
3. A Grand, Snow-Rimmed Canyon

• Earth
• Earth Observatory
• Image of the Day
• EO Explorer
• Topics
• More Content
• About

Strange as it may seem, the prospects of finding advanced high-tech aliens somewhere in the cosmos will likely depend on finding exoplanets that like our own earth harbor large amounts of accessible energy-dense coal.

An international team of researchers have published two papers that reveal a new model for how the magnetic field of the Milky Way evolved.