A recent study published in The Astrophysical Journal Letters investigates the potential existence of Mars-sized free-floating planets (FFPs)--also known as rogue planets, starless planets, and wandering planets--that could have been captured by our Sun's gravity long ago and orbit in the outer solar system approximately 1,400 astronomical units (AU) from the Sun. For context, the …
A recent study published in The Astrophysical Journal Letters investigates the potential existence of Mars-sized free-floating planets (FFPs)--also known as rogue planets, starless planets, and wandering planets--that could have been captured by our Sun's gravity long ago and orbit in the outer solar system approximately 1,400 astronomical units (AU) from the Sun. For context, the …
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