Earth’s Magnetic Field Is Almost Similar to What it Was Like 3.7 Billion Years Ago

Posted on Categories Discover Magazine

The magnetic field shields Earth from cosmic radiation and the solar wind that the Sun pelts the planet with. In a new study, researchers found our current magnetic field could be the same to what it was 3.7 billion years ago.The findings published in the Journal of Geophysical Research are scientists' oldest estimates of Earth's magnetic field strength. It was found using rocks dating 3.7 billion years old. "This is a really important step forward as we try and determine the role of the ancient ...read more

Ancient Salmon Resembles Aquatic Warthog, Not Saber-Toothed Fish

Posted on Categories Discover Magazine

A giant, tusked salmon was once thought to resemble a fish version of a saber-toothed tiger. But turns out, it looked more closely to an aquatic warthog. A newly reported fossil find is now prompting paleontologists to rethink the nickname of the largest known salmon species — Oncorhynchus rastrosus, according to an article in PLOS ONE. The fish, which grew to nearly nine feet long, lived 3 million to 5 million years ago in the Pacific Northwest.A Saber-Toothed Salmon?When paleontologists firs ...read more

From a Pink Moon to Blue, the Moon’s Colors Aren’t Always Colorful

Posted on Categories Discover Magazine

Between the solar eclipse and the upcoming Pink Moon, there are many events in the night sky to take note of in 2024. The moon itself has different phases and different colors that represent changing seasons. Thus giving us the names Pink or Blue Moon.If you’re hoping to see the moon take on a new hue, though, you’re out of luck. The reason behind the Pink Moon’s colorful name is not what you may expect.The Pink Moon Represents a FlowerThe Pink Moon is a full moon that takes place during t ...read more

Solar Flares are Stunning but are They Dangerous? Here’s What to Know

Posted on Categories Discover Magazine

Solar flares are one of the most powerful phenomena in our solar system. These bursts of radiation sporadically erupt from the Sun and can unleash the energy equivalent of billions of hydrogen bombs in mere minutes. A better understanding of solar flares can provide valuable insight into the nature of our Sun, as well as how these events can affect Earth. Let's dive into the basics of solar flares, from what they are to the dangers they can present. What Is a Solar Flare?Image captured by NASA's ...read more

Jupiter’s 8,700-Mile-Wide Great Red Spot Keeps Shrinking

Posted on Categories Discover Magazine

Earth’s atmosphere is in such constant flux that we have a tired old saying about it: “If you don’t like the weather, wait five minutes.” If we lived on Jupiter — where a single storm has been raging uninterrupted for almost two centuries, and possibly much longer — we’d have to muster more patience.But perhaps we wouldn’t have to wait forever. The Great Red Spot, an enormous high-pressure system which astronomers have tracked regularly since the late 19th century, is steadily dw ...read more

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