Sedna (minor-planet designation: 90377 Sedna) is a dwarf planet in the outermost reaches of the Solar System, orbiting the Sun far beyond the orbit of Neptune. It was discovered in 2003, and is roughly …

Nov 14, 2003 · Sedna is a minor planet, or planetoid, that lies beyond the Kuiper Belt. Its home reaches to the far edges of the solar system, making it one of the most distant space bodies ever identified.

Jun 30, 2025 · Scientists are looking at two breakthrough propulsion technologies that might let us reach Sedna, an icy, reddish dwarf planet far beyond the orbit of Pluto, before it slips away into deep space …

Dec 15, 2025 · Sedna, small body in the outer solar system that may be the first discovered object from the Oort cloud. Sedna was discovered in 2003 by a team of American astronomers at Palomar …

Oct 7, 2025 · Scientific analysis of Sedna, a dwarf planet isolated between the Kuiper Belt and the Oort Cloud, revealing the outer structure of the Solar System.

Jun 14, 2023 · Sedna, named for the Inuit goddess of the deep sea, is the most distant object known to orbit the sun and is three times farther from Earth than Pluto.

Sedna is one of the transneptunian objects that orbit the sun beyond Neptune in an extremely cold area of the solar system. Scientists believe that it originated from the early solar system.

Jun 28, 2025 · In the frigid darkness beyond Pluto, where sunlight is a faint whisper and temperatures drop to an unimaginable −240°C, a lonely, crimson world drifts through the void. Its name is …

Sedna is the revered goddess of the sea in Inuit mythology, known for her deep connection to marine life and her dualistic nature. She begins as a beautiful young woman who, in her quest for love, is …

Explore Sedna, the distant solar system object with a unique orbit and icy composition. Discover its origins, significance, and scientific mysteries in this in-depth guide.