After a decade-long search, some scientists say a growing number of clues point to the existence of a hidden planet in the Kuiper Belt beyond Neptune — and they may soon have the opportunity to find ...

Forest ranger beating out a fire ... all the major planets keep very close to the ecliptic. All must, then, be regarded as having always been members of the solar system, however much their ...

Astronomers are investigating the possibility of a hidden ninth planet beyond Neptune, which could explain unusual orbital patterns in the Kuiper Belt.

Tiny grains from a distant asteroid are revealing clues to the magnetic forces that shaped the far reaches of the solar ...

A new technique allows astronomers to home in on planets beyond our solar system that are in line with ... beyond anything we unintentionally send out. But, with better equipment, like the ...

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Planet AF Lep b is a world of firsts. In 2023, it was the lowest-mass planet outside our solar system to be directly ... difficult to separate one source out from the other source when they ...

It just tells me that the planet is alive, not literally, but figuratively. NARRATOR: And when we look beyond Earth and its moon, out into our solar system, other dynamic worlds like ours do exist.

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As for the current state of research, some scientists doubt that Planet Nine is a planet at all: it could be a primordial black hole, and the authors invite other researchers to find out the truth ...

They found no evidence from within the star system, which is known to have seven planets orbiting a red dwarf star. That makes TRAPPIST-1 the star system most similar to the solar system.

Our solar system used to have nine planets ... it took us almost a decade to figure this out. Better late than never, I suppose,” Batygin said. Planet Nine, according to Batygin, is a ...