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For the first time ever, scientists have detected radio waves coming directly from a planet beyond our solar system. And before you ask, no, it’s not aliens.
At least we think…
The research hasn’t been peer-reviewed yet, so the signals are not technically considered evidence of extraterrestrial communication (at least by the scientific community).
Instead, researchers think the radio waves were generated by an exceptionally strong magnetic field around Beta Pictoris b, a gas giant roughly 63 light-years away from Earth.
The signals appear to come from auroras created when charged particles interact with the planet’s magnetic field.
In layman's terms, it’s basically the same physics behind our planet’s northern lights, just on a much, much bigger scale.
What makes it so powerful? Scientists aren’t entirely sure. The leading theory is that the planet’s young age (only about 25 million years old) means its interior is still hot and energetic enough to generate an unusually strong magnetic field, which is roughly 300 times stronger than Jupiter’s.
That makes it a suitable candidate to support life: While Beta Pictoris b itself is a rocky gas giant, its abnormally strong magnetic field gives it unparalleled protection from radiation and solar winds. See which other planets scientists think are the best for (potentially) hosting human life here.
/ Why is this important? The signals could improve how scientists search for planets that might actually support life, helping researchers focus expensive telescope time on planets that not only sit in the right temperature zone, but also have the magnetic protection needed to preserve their atmospheres.
